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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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#1
Posted to alt.internet.wireless,sci.electronics.repair,alt.home.repair
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How are we supposed to read 5GHz WiFi signal strength bands?
I ran a WiFi survey using "Wifi Analyzer" freeware on my Android phone in
a college-dorm atmosphere earlier today (after installing Windows 10), and I think I completely understand the 2.4GHz wifi signal-strength chart; but I totally fail to gather any useful information out of the 5GHz signal-strength chart (specifically what band to set the 5GHz wifi adapter to). http://i.imgur.com/JS4BDiy.jpg The 2.4GHz chart is at the left; while the 5GHz chart is to the right. Can you help me interpret what I'm seeing in the 5GHz chart? I can't make any sense of the 5GHz chart (for example, what band to use?). Can you? |
#2
Posted to alt.internet.wireless,sci.electronics.repair,alt.home.repair
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How are we supposed to read 5GHz WiFi signal strength bands?
In alt.home.repair, on Sun, 23 Aug 2015 05:45:56 +0000 (UTC), ceg
wrote: I ran a WiFi survey using "Wifi Analyzer" freeware on my Android phone in a college-dorm atmosphere earlier today (after installing Windows 10), and I think I completely understand the 2.4GHz wifi signal-strength chart; but I totally fail to gather any useful information out of the 5GHz signal-strength chart (specifically what band to set the 5GHz wifi adapter to). http://i.imgur.com/JS4BDiy.jpg The 2.4GHz chart is at the left; while the 5GHz chart is to the right. It's awfully pretty. Can you help me interpret what I'm seeing in the 5GHz chart? I think it means "LIfe is empty and the only true solace is in technology." I can't make any sense of the 5GHz chart (for example, what band to use?). Can you? No. But it's awfully purty. Maybe a museum would want to display it |
#3
Posted to alt.internet.wireless,sci.electronics.repair,alt.home.repair
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How are we supposed to read 5GHz WiFi signal strength bands?
In alt.home.repair, on Sun, 23 Aug 2015 05:45:56 +0000 (UTC), ceg
wrote: I ran a WiFi survey using "Wifi Analyzer" freeware on my Android phone in a college-dorm atmosphere earlier today (after installing Windows 10), and I think I completely understand the 2.4GHz wifi signal-strength chart; but I totally fail to gather any useful information out of the 5GHz signal-strength chart (specifically what band to set the 5GHz wifi adapter to). http://i.imgur.com/JS4BDiy.jpg A strange thing. The image above displayed just fine at first and for at least a couple minutes, and I went and did something else, but later when I looked at the tab, it was all black. When I reloaded, I got the message. "The image http://i.imgur.com/JS4BDiy.jpg cannot be dsplayed because it contains errors". I checked the spelling. You didn't change the image in the 15 minutes preceding the current time, did you? When I clicked on the link above just now, got the same black screen with one line error message at the top, as above. |
#4
Posted to alt.internet.wireless,sci.electronics.repair,alt.home.repair
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How are we supposed to read 5GHz WiFi signal strength bands?
In alt.home.repair, on Sun, 23 Aug 2015 06:33:36 -0400, micky
wrote: In alt.home.repair, on Sun, 23 Aug 2015 05:45:56 +0000 (UTC), ceg wrote: I ran a WiFi survey using "Wifi Analyzer" freeware on my Android phone in a college-dorm atmosphere earlier today (after installing Windows 10), and I think I completely understand the 2.4GHz wifi signal-strength chart; but I totally fail to gather any useful information out of the 5GHz signal-strength chart (specifically what band to set the 5GHz wifi adapter to). http://i.imgur.com/JS4BDiy.jpg A strange thing. The image above displayed just fine at first and for at least a couple minutes, and I went and did something else, but later when I looked at the tab, it was all black. When I reloaded, I got the message. "The image http://i.imgur.com/JS4BDiy.jpg cannot be dsplayed because it contains errors". I checked the spelling. You didn't change the image in the 15 minutes preceding the current time, did you? When I clicked on the link above just now, got the same black screen with one line error message at the top, as above. Tried again just now, 14 minutes later, and it worked just fine. Maybe because I had closed the two tabs with error messages? |
#5
Posted to alt.internet.wireless,sci.electronics.repair,alt.home.repair
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How are we supposed to read 5GHz WiFi signal strength bands?
On 23/08/2015 06:45, ceg wrote:
I ran a WiFi survey using "Wifi Analyzer" freeware on my Android phone in a college-dorm atmosphere earlier today (after installing Windows 10), and I think I completely understand the 2.4GHz wifi signal-strength chart; but I totally fail to gather any useful information out of the 5GHz signal-strength chart (specifically what band to set the 5GHz wifi adapter to). http://i.imgur.com/JS4BDiy.jpg The 2.4GHz chart is at the left; while the 5GHz chart is to the right. Can you help me interpret what I'm seeing in the 5GHz chart? I can't make any sense of the 5GHz chart (for example, what band to use?). Can you? It got misdirected from a disco gobo. |
#6
Posted to alt.internet.wireless,sci.electronics.repair,alt.home.repair
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How are we supposed to read 5GHz WiFi signal strength bands?
CEG,
Puzzling that your graph or chart on the right does not have a labelled "x" axis. What is it showing? If it is meant to be like the chart on the left then that suggests that you do not have anything but noise at 5 gHz. Looks like a lot of noise. Dave M. |
#7
Posted to alt.internet.wireless,sci.electronics.repair,alt.home.repair
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How are we supposed to read 5GHz WiFi signal strength bands?
On 23/08/2015 06:45, ceg wrote:
I ran a WiFi survey using "Wifi Analyzer" freeware on my Android phone in a college-dorm atmosphere earlier today (after installing Windows 10), and I think I completely understand the 2.4GHz wifi signal-strength chart; but I totally fail to gather any useful information out of the 5GHz signal-strength chart (specifically what band to set the 5GHz wifi adapter to). http://i.imgur.com/JS4BDiy.jpg The 2.4GHz chart is at the left; while the 5GHz chart is to the right. Can you help me interpret what I'm seeing in the 5GHz chart? I can't make any sense of the 5GHz chart (for example, what band to use?). Can you? You could start by choosing the same graph format for both images and then actually choosing the 5Ghz one for the one on the right (hint no 5G displayed) |
#8
Posted to alt.internet.wireless,sci.electronics.repair,alt.home.repair
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How are we supposed to read 5GHz WiFi signal strength bands?
On Sun, 23 Aug 2015 05:45:56 +0000 (UTC), ceg
wrote: I ran a WiFi survey using "Wifi Analyzer" freeware on my Android phone in a college-dorm atmosphere earlier today (after installing Windows 10), and I think I completely understand the 2.4GHz wifi signal-strength chart; but I totally fail to gather any useful information out of the 5GHz signal-strength chart (specifically what band to set the 5GHz wifi adapter to). http://i.imgur.com/JS4BDiy.jpg The 2.4GHz chart is at the left; while the 5GHz chart is to the right. While viewing the 2.4GHz chart, tap the screen once. You'll see a freq band indicator over on the left, near the -db scale. If you do nothing, the freq indicator times out and disappears again, but if you tap it while it's visible, the screen switches to the 5GHz band. What you're calling the 5GHz chart is really just another view of the 2.4GHz chart. You *swiped* to get there. You need to tap. |
#9
Posted to alt.internet.wireless,sci.electronics.repair,alt.home.repair
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How are we supposed to read 5GHz WiFi signal strength bands?
"David L. Martel" wrote in message ...
CEG, Puzzling that your graph or chart on the right does not have a labelled "x" axis. What is it showing? If it is meant to be like the chart on the left then that suggests that you do not have anything but noise at 5 gHz. Looks like a lot of noise. Dave M. Carefully. LOL |
#10
Posted to alt.internet.wireless,sci.electronics.repair,alt.home.repair
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How are we supposed to read 5GHz WiFi signal strength bands?
On Sun, 23 Aug 2015 05:45:56 +0000 (UTC), ceg
wrote: http://i.imgur.com/JS4BDiy.jpg The 2.4GHz chart is at the left; while the 5GHz chart is to the right. Can you help me interpret what I'm seeing in the 5GHz chart? No, it's not. We've been through this before. If your smartphone supports 5GHz wi-fi, Wi-Fi Analyzer will produce a square box, near the upper left hand corner of the screen, just below the "W" in "WiFi Analyzer" with either 2.4G or 5G inside the box. The problem is that the box disappears. Tap that area and the box will magically appear. Tap it again to toggle modes. Also, if you're looking at 5G and no SSID's are showing, the program will magically switch back to 2.4G. The mess you were looking at on the right is the signal strength versus time graphs. Too bad the author of WiFi Analyzer didn't bother adding page titles. You're not done yet. I've noticed that several "smart" devices, such as cheapo cell phone and tabloids, that are allegedly dual band, turn off the unused band when connected to an access point. The result is that WiFi Analyzer pretends that there's no 5G in the device. Disconnecting from your access point should solve that problem. Also, there's something wrong with your Comcast connection. Your download speed is fine, but you should be getting about 12 Mbits/sec upstream. At least that's what I've been seeing at various customers. Winner of the highest residential speed award so far was about 160/30 in Felton with a Comcast Cisco DPC3939: http://mydeviceinfo.comcast.net/device.php?devid=357 There's suitable conspiracy here, but I promised not to tell. Leak of the week (which means you didn't read this here): Comcast Business class will also get a boost in speed on Thurs, Aug 27. Reboot your modems in order to see the improvement. I pried this out of a Comcast installer last week. If it doesn't happen on time, I'll claim that this was a forgery and that I never said it. -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
#11
Posted to alt.internet.wireless,sci.electronics.repair,alt.home.repair
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How are we supposed to read 5GHz WiFi signal strength bands?
Does that app exist for iOS? I didn't see it.
On 8/22/2015 10:45 PM, ceg wrote: I ran a WiFi survey using "Wifi Analyzer" freeware on my Android phone in a college-dorm atmosphere earlier today (after installing Windows 10), and I think I completely understand the 2.4GHz wifi signal-strength chart; but I totally fail to gather any useful information out of the 5GHz signal-strength chart (specifically what band to set the 5GHz wifi adapter to). http://i.imgur.com/JS4BDiy.jpg The 2.4GHz chart is at the left; while the 5GHz chart is to the right. Can you help me interpret what I'm seeing in the 5GHz chart? I can't make any sense of the 5GHz chart (for example, what band to use?). Can you? -- "Wow, I haven't felt this powerful since I got to decide which ant lives and which ant dies. You shall battle to the death, and the winner will be given his freedom. Why are you looking at me like that?" --Peter; "Peter, would you like a glass of...? Oh, my God! I told you not to play God with those ants!" --Lois in Family Guy S12E16. Note: A fixed width font (Courier, Monospace, etc.) is required to see this signature correctly. /\___/\ Ant(Dude) @ http://antfarm.ma.cx (Personal Web Site) / /\ /\ \ Ant's Quality Foraged Links: http://aqfl.net | |o o| | \ _ / If crediting, then use Ant nickname and AQFL URL/link. ( ) Chop ANT from its address if e-mailing privately. Ant is currently not listening to any songs on this computer. |
#12
Posted to alt.internet.wireless,sci.electronics.repair,alt.home.repair
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How are we supposed to read 5GHz WiFi signal strength bands?
On Sun, 23 Aug 2015 16:35:09 -0700, Ant wrote:
Does that app exist for iOS? I didn't see it. Nope. Apple has decided that you should not be allowed to install wi-fi sniffer, monitor, and troubleshooting applications on Apple handsets. Apple knows what is best for you. This is typical: http://www.adriangranados.com/blog/where-did-wifi-analyzer-go Limitations like this is why I gave up on IOS long ago. Of course, that's why people jailbreak their iPhones. Try the Cydia store on your jailbroken iThing: https://cydia.saurik.com Firing up my ancient iPhone 3G (jailbroken), I find - yFyLite Network Finder and nothing else. There might be something newer. I just ran Cydia to see if there's anything new, and it's furiously updating packages and indexes. Yawn... Argh, this thing is slow. How could I ever have used it? The Cydia listing shows a huge list of WiFi related utilities. A few are similar to WiFi Analyzer. The others are connection managers and password managers. Most are useless tweaks changing the stock signal stength icon to something more interesting. One I recall from long ago is WiFiFoFum with its goofy radar like display. Of course, if you have a laptop, Apple allows Wi-Fi monitoring for OS/X: https://itunes.apple.com/us/app/wifi-explorer/id494803304?mt=12 https://itunes.apple.com/us/app/wifi-signal/id525912054?mt=12 Any semblance to hypocrisy is hopefully coincidental. -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
#13
Posted to alt.internet.wireless,sci.electronics.repair,alt.home.repair
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How are we supposed to read 5GHz WiFi signal strength bands?
On Sun, 23 Aug 2015 06:48:42 -0400, micky wrote:
Tried again just now, 14 minutes later, and it worked just fine. Maybe because I had closed the two tabs with error messages? Works for me. http://i.imgur.com/JS4BDiy.jpg Anyway, I can't make any sense out of the 5GHz graph, so, I was hoping someone who knew what it means would chime in. |
#14
Posted to alt.internet.wireless,sci.electronics.repair,alt.home.repair
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How are we supposed to read 5GHz WiFi signal strength bands?
On Sun, 23 Aug 2015 05:03:54 -0700, trader_4 wrote:
Does the app have a setting where you can limit the ones plotted to ones that are above some cutoff level? None that I know of. The app is the freeware "WiFi Analyzer". At home, with only a handful of 5GHz WiFi signals, the chart is easy to read, and you are correct, the graphs are color coded to the access points (ESSIDs) in the boxes at the top, and the upper squiggles are of greater signal strength. |
#15
Posted to alt.internet.wireless,sci.electronics.repair,alt.home.repair
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How are we supposed to read 5GHz WiFi signal strength bands?
On Sun, 23 Aug 2015 13:09:55 +0100, N_Cook wrote:
http://i.imgur.com/JS4BDiy.jpg It got misdirected from a disco gobo. BTW, why do so many people use HOME as the prefix to their SSID's? |
#16
Posted to alt.internet.wireless,sci.electronics.repair,alt.home.repair
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How are we supposed to read 5GHz WiFi signal strength bands?
On Sun, 23 Aug 2015 10:31:36 -0400, David L. Martel wrote:
Puzzling that your graph or chart on the right does not have a labelled "x" axis. What is it showing? If it is meant to be like the chart on the left then that suggests that you do not have anything but noise at 5 gHz. Looks like a lot of noise. At home, I can see better what is going on. The 5GHz graph from Wifi Analyzer freeware has signal strength on the Y axis (-30dBm at the top line, then -40dBm, -50dBm, -60dBm, -70dBm, -80dBm, and -90dBm on the first line above the x axis, where the y intercept must be at -100dBm Signal Strength. The X axis isn't labeled, but it must just be time since I can watch the graphs grow from one side to the other in about two minutes time. |
#17
Posted to alt.internet.wireless,sci.electronics.repair,alt.home.repair
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How are we supposed to read 5GHz WiFi signal strength bands?
On Sun, 23 Aug 2015 15:56:04 +0100, Lee wrote:
You could start by choosing the same graph format for both images and then actually choosing the 5Ghz one for the one on the right (hint no 5G displayed) I don't think you get any option to choose anything, least of all the graph format. |
#18
Posted to alt.internet.wireless,sci.electronics.repair,alt.home.repair
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How are we supposed to read 5GHz WiFi signal strength bands?
On Sun, 23 Aug 2015 10:01:03 -0500, Char Jackson wrote:
What you're calling the 5GHz chart is really just another view of the 2.4GHz chart. You *swiped* to get there. You need to tap. Oooooooooooooh. I *did* swipe to see what I was calling the 5GHz chart! (How did you know?) I see now, that it's the *same* chart, only over time instead of over frequency! (slaps head ... duh) It was just frequency versus time for the x axis between the two charts. (embarrassed). I see I have 5 options for viewing that 2.4GHz chart: 1. Channel graph 2. Time graph 3. Channel rating 4. AP list 5. Signal meter If I *tap* at the top left (near the top of the y axis), then I see a box with "2G" and "5G" alternatively, as I tap that box. Geeeeeeez. I feel stoooopid. |
#19
Posted to alt.internet.wireless,sci.electronics.repair,alt.home.repair
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How are we supposed to read 5GHz WiFi signal strength bands?
On Sun, 23 Aug 2015 10:34:24 -0700, Jeff Liebermann wrote:
If your smartphone supports 5GHz wi-fi, Wi-Fi Analyzer will produce a square box, near the upper left hand corner of the screen, just below the "W" in "WiFi Analyzer" with either 2.4G or 5G inside the box. The problem is that the box disappears. Tap that area and the box will magically appear. Tap it again to toggle modes. Also, if you're looking at 5G and no SSID's are showing, the program will magically switch back to 2.4G. I only just now realized that what you are saying it totally correct! I was wrong. I misinterpreted what I was seeing. And that's why it confused me. The mess you were looking at on the right is the signal strength versus time graphs. Too bad the author of WiFi Analyzer didn't bother adding page titles. Now I see that, since I have far fewer access points at home. You're not done yet. I've noticed that several "smart" devices, such as cheapo cell phone and tabloids, that are allegedly dual band, turn off the unused band when connected to an access point. The result is that WiFi Analyzer pretends that there's no 5G in the device. Disconnecting from your access point should solve that problem. When I tap the top left, I do get a 5G and a 2G box, alternating with each other. So, WiFi Analyzer does seem to see both. Also, there's something wrong with your Comcast connection. Your download speed is fine, but you should be getting about 12 Mbits/sec upstream. At least that's what I've been seeing at various customers. Winner of the highest residential speed award so far was about 160/30 in Felton with a Comcast Cisco DPC3939: http://mydeviceinfo.comcast.net/device.php?devid=357 There's suitable conspiracy here, but I promised not to tell. That's interesting. It's the kid's Comcast setup. I'm at home now, so, I can't test it. But they get about 90 down on 5GHz and about 5 or 6 up. On 2.4GHz, they get only about 30 down and about 5 or 6 up. The "service", as I recall, is nominally 45 down and 5 up. So, should they really be getting double the upload speeds? Should we complain to Comcast since it's at least 5Gbps? Leak of the week (which means you didn't read this here): Comcast Business class will also get a boost in speed on Thurs, Aug 27. Reboot your modems in order to see the improvement. I pried this out of a Comcast installer last week. If it doesn't happen on time, I'll claim that this was a forgery and that I never said it. I wonder what "Business Class" is. Are these kids in Business Class? It's an apartment building with a lot of kids in it (all from the school) but it's an off-campus building. |
#20
Posted to misc.phone.mobile.iphone,sci.electronics.repair,comp.mobile.ipad
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How are we supposed to read 5GHz WiFi signal strength bands?
On Sun, 23 Aug 2015 20:59:34 -0700, Jeff Liebermann wrote:
On Sun, 23 Aug 2015 16:35:09 -0700, Ant wrote: Does that app exist for iOS? I didn't see it. Nope. Apple has decided that you should not be allowed to install wi-fi sniffer, monitor, and troubleshooting applications on Apple handsets. Apple knows what is best for you. This is typical: http://www.adriangranados.com/blog/where-did-wifi-analyzer-go Limitations like this is why I gave up on IOS long ago. Of course, that's why people jailbreak their iPhones. Try the Cydia store on your jailbroken iThing: https://cydia.saurik.com Firing up my ancient iPhone 3G (jailbroken), I find - yFyLite Network Finder and nothing else. There might be something newer. I just ran Cydia to see if there's anything new, and it's furiously updating packages and indexes. Yawn... Argh, this thing is slow. How could I ever have used it? The Cydia listing shows a huge list of WiFi related utilities. A few are similar to WiFi Analyzer. The others are connection managers and password managers. Most are useless tweaks changing the stock signal stength icon to something more interesting. One I recall from long ago is WiFiFoFum with its goofy radar like display. Of course, if you have a laptop, Apple allows Wi-Fi monitoring for OS/X: https://itunes.apple.com/us/app/wifi-explorer/id494803304?mt=12 https://itunes.apple.com/us/app/wifi-signal/id525912054?mt=12 Any semblance to hypocrisy is hopefully coincidental. Jeff is correct. On iOS, you are screwed unless you jailbreak it to make it functional. But OS/X should work, as would any other operating system not iOS. |
#21
Posted to alt.internet.wireless,sci.electronics.repair,alt.home.repair
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How are we supposed to read 5GHz WiFi signal strength bands?
ceg wrote:
On Sun, 23 Aug 2015 13:09:55 +0100, N_Cook wrote: http://i.imgur.com/JS4BDiy.jpg It got misdirected from a disco gobo. BTW, why do so many people use HOME as the prefix to their SSID's? Maybe because it is home network? Mine is homewireless and cascadehome. |
#22
Posted to alt.internet.wireless,sci.electronics.repair,alt.home.repair
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How are we supposed to read 5GHz WiFi signal strength bands?
On Tue, 25 Aug 2015 22:06:49 +0000 (UTC), ceg
wrote: On Sun, 23 Aug 2015 13:09:55 +0100, N_Cook wrote: http://i.imgur.com/JS4BDiy.jpg It got misdirected from a disco gobo. BTW, why do so many people use HOME as the prefix to their SSID's? They don't. The HOME-XXXX format, where XXXX might be the last 4 digits of the MAC address, is the default SSID for Comcast "gateway" style wireless routers. I'm not sure when this started, but my guess(tm) is about 2 years ago. Anything is better than linksys, dlink, default, hpsetup, and default. https://wigle.net/stats#mainstats 3.74% of about 210 million wireless networks use the default SSID. I guess this is proof that most computer users have no imagination. -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
#23
Posted to alt.internet.wireless,sci.electronics.repair,alt.home.repair
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How are we supposed to read 5GHz WiFi signal strength bands?
On 08/25/2015 05:06 PM, ceg wrote:
On Sun, 23 Aug 2015 13:09:55 +0100, N_Cook wrote: http://i.imgur.com/JS4BDiy.jpg It got misdirected from a disco gobo. BTW, why do so many people use HOME as the prefix to their SSID's? I have been in a nearby city, where there are a lot of college students. I don't see "home" but I do often see ISP names or router brand names. It looks like an attempt by sellers to provide unique SSIDs, and users who don't change the defaults. Where I live, I don't see prefixes like that, but I do see some interesting names like "FBI Surveillance" and "ThisIsNoyTheWiFiYou'reLookingFor". -- Mark Lloyd http://notstupid.us/ "HUMANISM: an exaltation of freedom, but one limited by our need to exercise it as an integral part of nature and society." [John Ralston Saul] |
#24
Posted to alt.internet.wireless,sci.electronics.repair,alt.home.repair
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How are we supposed to read 5GHz WiFi signal strength bands?
On 08/26/2015 09:08 AM, Jeff Liebermann wrote:
[snip] Anything is better than linksys, dlink, default, hpsetup, and default. https://wigle.net/stats#mainstats 3.74% of about 210 million wireless networks use the default SSID. I guess this is proof that most computer users have no imagination. I used to see a lot of "Linksys" SSIDs without wireless security. Once I considered connecting and changing it to something like "I'm so insecure!" or "I need my WPA!", -- Mark Lloyd http://notstupid.us/ "HUMANISM: an exaltation of freedom, but one limited by our need to exercise it as an integral part of nature and society." [John Ralston Saul] |
#25
Posted to alt.internet.wireless,sci.electronics.repair,alt.home.repair
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How are we supposed to read 5GHz WiFi signal strength bands?
On Wed, 26 Aug 2015 07:08:58 -0700, Jeff Liebermann wrote:
They don't. The HOME-XXXX format, where XXXX might be the last 4 digits of the MAC address, is the default SSID for Comcast "gateway" style wireless routers. Ah. That makes a *lot* of sense (I hate when that happens!). This is a "comcast neighborhood", where all the college kids live. We can assume most of them weren't born with a router next to the silver spoon in the cradle, so, they probably got their modem/router combo's from Comcast. And Comcast probably defaulted on the naming conventions. That makes too much sense! Thanks for 'splaining. |
#26
Posted to alt.internet.wireless,sci.electronics.repair,alt.home.repair
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How are we supposed to read 5GHz WiFi signal strength bands?
On Wed, 26 Aug 2015 10:29:39 -0500, Mark Lloyd wrote:
I used to see a lot of "Linksys" SSIDs without wireless security. Once I considered connecting and changing it to something like "I'm so insecure!" or "I need my WPA!", Because of butterfly tables, you want your ESSID to be unique, I think. The details are beyond me (I think Jeff Liebermann turned me on to this concept), but the net is that you don't want your ESSID to be something that is in the hash tables of 30 million other ESSIDs. |
#27
Posted to alt.internet.wireless,sci.electronics.repair,alt.home.repair
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How are we supposed to read 5GHz WiFi signal strength bands?
Jeff Liebermann wrote:
On Tue, 25 Aug 2015 22:06:49 +0000 (UTC), ceg wrote: On Sun, 23 Aug 2015 13:09:55 +0100, N_Cook wrote: http://i.imgur.com/JS4BDiy.jpg It got misdirected from a disco gobo. BTW, why do so many people use HOME as the prefix to their SSID's? They don't. The HOME-XXXX format, where XXXX might be the last 4 digits of the MAC address, is the default SSID for Comcast "gateway" style wireless routers. I'm not sure when this started, but my guess(tm) is about 2 years ago. Anything is better than linksys, dlink, default, hpsetup, and default. https://wigle.net/stats#mainstats 3.74% of about 210 million wireless networks use the default SSID. I guess this is proof that most computer users have no imagination. Fancy SSID has no impact on security. |
#28
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How are we supposed to read 5GHz WiFi signal strength bands?
On Wed, 26 Aug 2015 17:31:20 -0600, Tony Hwang wrote:
Fancy SSID has no impact on security. Butterfly hash tables? |
#29
Posted to alt.internet.wireless,sci.electronics.repair,alt.home.repair
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How are we supposed to read 5GHz WiFi signal strength bands?
On Wed, 26 Aug 2015 17:31:20 -0600, Tony Hwang
wrote: Fancy SSID has no impact on security. Wrong. The SSID is used as a "salt" to do WPA/WPA2 encryption. The rainbow tables are only useful if the SSID of the system that you're attacking is the same as one of the SSID's in the rainbow table. Using a common SSID listed on Wigle improves the probability of a successful attack. I use my address. http://www.renderlab.net/projects/WPA-tables/ https://wigle.net/stats#ssidstats -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
#30
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How are we supposed to read 5GHz WiFi signal strength bands?
Jeff Liebermann wrote:
On Wed, 26 Aug 2015 17:31:20 -0600, Tony Hwang wrote: Fancy SSID has no impact on security. Wrong. The SSID is used as a "salt" to do WPA/WPA2 encryption. The rainbow tables are only useful if the SSID of the system that you're attacking is the same as one of the SSID's in the rainbow table. Using a common SSID listed on Wigle improves the probability of a successful attack. I use my address. http://www.renderlab.net/projects/WPA-tables/ https://wigle.net/stats#ssidstats Regardless, it is crackable if one intends to. I don't even bother hiding my SSID. Nothing important in my home network. My lawyer, bank, accountant keeping important stuffs. |
#31
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How are we supposed to read 5GHz WiFi signal strength bands?
On Thu, 27 Aug 2015 11:20:05 -0600, Tony Hwang
wrote: Jeff Liebermann wrote: On Wed, 26 Aug 2015 17:31:20 -0600, Tony Hwang wrote: Fancy SSID has no impact on security. Wrong. The SSID is used as a "salt" to do WPA/WPA2 encryption. The rainbow tables are only useful if the SSID of the system that you're attacking is the same as one of the SSID's in the rainbow table. Using a common SSID listed on Wigle improves the probability of a successful attack. I use my address. http://www.renderlab.net/projects/WPA-tables/ https://wigle.net/stats#ssidstats Regardless, it is crackable if one intends to. I don't even bother hiding my SSID. Nothing important in my home network. My lawyer, bank, accountant keeping important stuffs. This is one reason why I hate security discussions. If you really think there's nothing important on your home computah, then I suggest you test this. Install a program that does a recursive text search on all your files. For Windoze, I use Agent Ransack: https://www.mythicsoft.com/agentransack Plug in your social security number, checking account numbers, and credit card numbers, and see what it finds. The idea is to obtain enough info to perform an identity theft. I was rather surprised to find both on my machine. While WPA2 cracking is usually just to gain access to a faster or more convenient internet connection, it's not beneath the dignity of most casual hackers to make some money on the side. -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
#32
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How are we supposed to read 5GHz WiFi signal strength bands?
On 08/26/2015 06:31 PM, Tony Hwang wrote:
Fancy SSID has no impact on security. It could affect how attractive your network is to a potential intruder. So, indirectly, it is affecting security since it makes the difference on whether or not someone tries to get in. -- "I am attempting to construct a mnemonic memory circuit using stone knives and bearskins." |
#33
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How are we supposed to read 5GHz WiFi signal strength bands?
On 08/27/2015 12:29 AM, Jeff Liebermann wrote:
On Wed, 26 Aug 2015 17:31:20 -0600, Tony Hwang wrote: Fancy SSID has no impact on security. Wrong. The SSID is used as a "salt" to do WPA/WPA2 encryption. The rainbow tables are only useful if the SSID of the system that you're attacking is the same as one of the SSID's in the rainbow table. Using a common SSID listed on Wigle improves the probability of a successful attack. I use my address. http://www.renderlab.net/projects/WPA-tables/ https://wigle.net/stats#ssidstats Don't name your WiFi network "monkey". -- "I am attempting to construct a mnemonic memory circuit using stone knives and bearskins." |
#34
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How are we supposed to read 5GHz WiFi signal strength bands?
On Thu, 27 Aug 2015 13:26:40 -0500, Sam E
wrote: Don't name your WiFi network "monkey". The SSID can be 1 to 32 characters. One of my customers set his SSID to "*". I forgot exactly what it broke, but I do recall spending a week failing to fix what I thought were unrelated problem. When I changed the SSID to something reasonable, all the weirdness went away. This was quite a while ago so presumably it's now fixed. Another fun SSID is "ANY". I don't recall what it was suppose to do, but it was thrown into some long forgotten manufacturers firmware to allow any device to connect, probably for repeaters and range extenders. Try it and see what breaks. Also try "Free Public WiFi" which is really a Microsoft XP bug. http://www.npr.org/2010/10/09/130451369/the-zombie-network-beware-free-public-wifi -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
#35
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How are we supposed to read 5GHz WiFi signal strength bands?
On Thu, 27 Aug 2015 11:20:05 -0600, Tony Hwang wrote:
Regardless, it is crackable if one intends to. I don't even bother hiding my SSID. Nothing important in my home network. My lawyer, bank, accountant keeping important stuffs. It doesn't seem like you understand the problem. Maybe you do, but it doesn't seem like you do. The problem is they used, as a salt, the ESSID! That's a pretty dumb salt. It's even a dumber salt if the owner leaves the ESSID at the default values, or, if the owner changes the ESSID to something common. Because of that, anyone with the tables already has your hash and is on your wireless network already. |
#36
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How are we supposed to read 5GHz WiFi signal strength bands?
On Wed, 26 Aug 2015 10:29:39 -0500, Mark Lloyd wrote:
I used to see a lot of "Linksys" SSIDs without wireless security. Once I considered connecting and changing it to something like "I'm so insecure!" or "I need my WPA!", You have to realize what Jeff is trying to tell you, which is that any common name for the ESSID has *already* been hashed. In that case, WPA2/PSK is worthless. Use a common name, and you immediately have no security no matter what you set the security to. |
#37
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How are we supposed to read 5GHz WiFi signal strength bands?
On 09/03/2015 11:53 PM, Ewald Böhm wrote:
On Wed, 26 Aug 2015 10:29:39 -0500, Mark Lloyd wrote: I used to see a lot of "Linksys" SSIDs without wireless security. Once I considered connecting and changing it to something like "I'm so insecure!" or "I need my WPA!", You have to realize what Jeff is trying to tell you, which is that any common name for the ESSID has *already* been hashed. In that case, WPA2/PSK is worthless. WPA2/PSK is one thing that is needed. Another is a better ESSID. Use a common name, and you immediately have no security no matter what you set the security to. -- 112 days until the winter celebration (Friday December 25, 2015 for 1 day). Mark Lloyd http://notstupid.us/ "He's a born-again Christian. The trouble is, he suffered brain damage during rebirth." |
#38
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How are we supposed to read 5GHz WiFi signal strength bands?
On Fri, 04 Sep 2015 11:59:08 -0500, Mark Lloyd wrote:
WPA2/PSK is one thing that is needed. Another is a better ESSID. You need both. One without the other is worthless. |
#39
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How are we supposed to read 5GHz WiFi signal strength bands?
On 09/05/2015 09:50 PM, Ewald Böhm wrote:
On Fri, 04 Sep 2015 11:59:08 -0500, Mark Lloyd wrote: WPA2/PSK is one thing that is needed. Another is a better ESSID. You need both. One without the other is worthless. Yes, both are better. I was never recommending only one, even though that would be far from worthless. -- 110 days until the winter celebration (Friday December 25, 2015 for 1 day). Mark Lloyd http://notstupid.us/ "If I see a professing vegetarian eating meat, it is no hypocrisy for me to point out his inconsistency even though I personally do not subscribe to the principles of vegetarianism." |
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