On Wednesday, 5 December 2018 16:30:44 UTC, Rod Speed wrote:
whisky-dave wrote
Rod Speed wrote
whisky-dave wrote
R D S wrote

I've 80mb fibre at my workplace, and I get almost full speed.

But it gets slower and slower over the course of several days to the
point of unusability, then I reboot the router and it's flying again..

What would cause this? Stuff beyond
my control, or is it possible it's my gear?

It's not a fancy setup, Technicolor router with a couple of PCs
plugged in and a downwind switch with a PC and a printer
plugged into that. Laptop and mobile connecting wirelessly.

What could cause a network to clag up?

Crap cables can cause problems, I've seen it before and
slightly broken or intermitant will cause errors and the
error checking increases bandwidth as it resends the data.

Doesnt explain why it works fine after a router reboot
and only sags days later.

It did when a friend of mine had a similar problem.

https://itstillworks.com/signs-ether...ght-33404.html

He scrapped the cable and it solved the problem.

Dont believe he had the same symptoms, works fine at full
speed after a router reboot but slows down over days after that.

Who said that the OP said "I've 80mb fibre at my workplace, and I get almost full speed."

I get almost 200mb at home.
at work we have fibre too and both up and down are nearer to 500Mbps