internet shutting off when starting another computer.

Strangeone

Distinguished
Dec 25, 2013
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18,510
I have a problem that no one has been able to answer...
When I turn on one of my many computers in my house, my internet shuts off and I have to reset it for it to come back on. This only happens when I turn on my wifes computer. I have turned off the wifi ability "or so it says disabled" and I have disconnected my cat 5 cable. and yet it still makes my internet shut off? I have tried changing the motherboard and still having the same problem.
as long as my wifes computer is turned on, my internet shuts off. Like I said, I have several computers running in my house at one time "everyone has there own pc for gaming" and hers is the only one that has this problem. I have checked for conflics in the ip addresses and none have been found. but the real mind blower is that all wifi and cables are disconnected from her computer!
I have tried everything and cant find a solution to this problem. PLEASE HELP !
I would like to think that with all the brain power on this site, someone would have some suggestions...