Odd network behavior

[compdoc]

On 07/31/2017 10:07 PM, rikona wrote:

> But, I started noticing on my Ubuntu box that I was periodically losing
> my network connection about every 5 to 20 minutes.

I recently had exactly the same problem with a client's network. it 
would work about 10 minutes then stop, and interface lights on some 
things would turn off.

They have two 24 port switches, that are connected together at the 
onboard switch of a firewall. Then one day, the receptionist found one 
end of a network cable laying on the floor and decided to plug it into 
the wall.

This created a 2nd path between the two main switches. A loop, 
basically. I think there are protocols like STP that can deal with this 
sort of thing, but I dont know enough about them to say. I was just 
lucky to discover what the receptionist had done, and unplugged the cable.

Btw, isnt there an option in access points that have to be used for the 
kind of roaming you're trying to do?