I have two HP 2100 laser printer on my home network with Jetdirect cards.
Both have fixed IP addresses and work fine, EXCEPT - if not used for a few
hours or sometimes days they are liable to vanish from the network, not to
return unless switched off and then back on again.

I wondered if something else was pinching their ip addresses, (we have
holiday cottages who's occupants have web access so ip addresses get given
out as they come and go) so moved the printers way up the map, and took
those ip addresses out of the pool for the DHCP to dish out. No change -
they still sometimes just vanish Can be hours or sometimes days.

Any suggestions gratefully received

Andrew

On 06/02/2014 18:02, Andrew Mawson wrote:
I have two HP 2100 laser printer on my home network with Jetdirect
cards. Both have fixed IP addresses and work fine, EXCEPT - if not used
for a few hours or sometimes days they are liable to vanish from the
network, not to return unless switched off and then back on again.

I used to have that problem with HP scanners too. They are pretty bad
about suspend resume logic and sometimes lose their connection. Shame
really as apart from that they were truly excellent and robust scanners.

I wondered if something else was pinching their ip addresses, (we have
holiday cottages who's occupants have web access so ip addresses get
given out as they come and go) so moved the printers way up the map, and
took those ip addresses out of the pool for the DHCP to dish out. No
change - they still sometimes just vanish Can be hours or sometimes
days.

Any suggestions gratefully received

You should be able to tell your router to reserve specific IP addresses
for tetchy retro printers. Mine would sometimes get itself a new IP
address following a powercut depending on what other battery powered
devices were still active when the router rebooted.

In the same way the cooker would reset to midnight and the ditigal
teasmade to making tea at +6 hours after power is restored

--
Regards,
Martin Brown

Andrew Mawson wrote:
I have two HP 2100 laser printer on my home network with Jetdirect
cards. Both have fixed IP addresses and work fine, EXCEPT - if not used
for a few hours or sometimes days they are liable to vanish from the
network, not to return unless switched off and then back on again.

I wondered if something else was pinching their ip addresses, (we have
holiday cottages who's occupants have web access so ip addresses get
given out as they come and go) so moved the printers way up the map, and
took those ip addresses out of the pool for the DHCP to dish out. No
change - they still sometimes just vanish Can be hours or sometimes
days.

Any suggestions gratefully received

Andrew

IME if this is windows XP, it's normal!

On Thu, 6 Feb 2014 18:02:05 -0000, Andrew Mawson wrote:

Both have fixed IP addresses and work fine, EXCEPT - if not used for a
few hours or sometimes days they are liable to vanish from the network,
not to return unless switched off and then back on again.

I get the same with an HP colour laserjet CP1515n, but it's only the
printing that stops. You can still ping it and explore it's web based
setup pages. The easy way to make it print again is a power cycle. It
doesn't happen very often, maybe once a month. This is on DHCP but
the server is set up so that everything that it has seen before gets
the IP address it had before.

--
Cheers
Dave.

On 06/02/2014 18:02, Andrew Mawson wrote:
I have two HP 2100 laser printer on my home network with Jetdirect
cards. Both have fixed IP addresses and work fine, EXCEPT - if not used
for a few hours or sometimes days they are liable to vanish from the
network, not to return unless switched off and then back on again.

I wondered if something else was pinching their ip addresses, (we have
holiday cottages who's occupants have web access so ip addresses get
given out as they come and go) so moved the printers way up the map, and
took those ip addresses out of the pool for the DHCP to dish out. No
change - they still sometimes just vanish Can be hours or sometimes
days.

Any suggestions gratefully received

IME HP printers of that era seem to have rather "fragile" jet direct
cards... I have been through a couple that just gave up completely on my
2200DN, and in the end found it easier to plug it into an external print
server via its USB where its been fine for 10 years or so (until last
month when the PSU on the print server died).

Might be worth running wireshark and pinging it when it goes comatose
and see what happens. Also try deleting its IP address from ARP table
("arp -d ipaddress), and see if it answers the ARP request.





--
Cheers,

John.

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On 06/02/2014 21:20, John Rumm wrote:
On 06/02/2014 18:02, Andrew Mawson wrote:
I have two HP 2100 laser printer on my home network with Jetdirect
cards. Both have fixed IP addresses and work fine, EXCEPT - if not used
for a few hours or sometimes days they are liable to vanish from the
network, not to return unless switched off and then back on again.

I wondered if something else was pinching their ip addresses, (we have
holiday cottages who's occupants have web access so ip addresses get
given out as they come and go) so moved the printers way up the map, and
took those ip addresses out of the pool for the DHCP to dish out. No
change - they still sometimes just vanish Can be hours or sometimes
days.

Any suggestions gratefully received

IME HP printers of that era seem to have rather "fragile" jet direct
cards... I have been through a couple that just gave up completely on my
2200DN, and in the end found it easier to plug it into an external print
server via its USB where its been fine for 10 years or so (until last
month when the PSU on the print server died).

Might be worth running wireshark and pinging it when it goes comatose
and see what happens. Also try deleting its IP address from ARP table
("arp -d ipaddress), and see if it answers the ARP request.





That vintage of HP had 'dry joint' problems on JetDirects. In the US
they replaced many for free. A hot air gun might work if you are brave
similar to issues on some games consoles I believe.

Dunno but i have in internet radio that does the same on a wired system, so
who knows. I blame the aliens.. grin.
Brian

--
From the Sofa of Brian Gaff Reply address is active
"Andrew Mawson" wrote in message
...
I have two HP 2100 laser printer on my home network with Jetdirect cards.
Both have fixed IP addresses and work fine, EXCEPT - if not used for a few
hours or sometimes days they are liable to vanish from the network, not to
return unless switched off and then back on again.

I wondered if something else was pinching their ip addresses, (we have
holiday cottages who's occupants have web access so ip addresses get given
out as they come and go) so moved the printers way up the map, and took
those ip addresses out of the pool for the DHCP to dish out. No change -
they still sometimes just vanish Can be hours or sometimes days.

Any suggestions gratefully received

Andrew

In message , Brian_Gaff
writes
Dunno but i have in internet radio that does the same on a wired system, so
who knows. I blame the aliens.. grin.
Brian

Global warming It's proven and if you question it you are a filthy
denier - or are they stockings?
--
bert

On 06/02/2014 18:02, Andrew Mawson wrote:
I have two HP 2100 laser printer on my home network with Jetdirect
cards. Both have fixed IP addresses and work fine, EXCEPT - if not used
for a few hours or sometimes days they are liable to vanish from the
network, not to return unless switched off and then back on again.

I wondered if something else was pinching their ip addresses, (we have
holiday cottages who's occupants have web access so ip addresses get
given out as they come and go) so moved the printers way up the map, and
took those ip addresses out of the pool for the DHCP to dish out. No
change - they still sometimes just vanish Can be hours or sometimes
days.

Any suggestions gratefully received


How do you expect to find the printer?

Do the printers stop responding to pings?


--
Michael Chare