I'm having an unusual problem with my computer. At random intervals I will lose my connection to the internet for several minutes. Then it will come back like nothing happened.
When this happens, the Windows Network & Sharing Center shows that my connection is fine, and when I run troubleshooters they don't find any problems, even though I can't get online. It's not the browser; I try both Firefox and Chrome, but neither will work when this issue crops up.
Some days it doesn't happen at all, and some days it happens several times in one day.
My computer is running Windows 7, and I am using a wired connection (ethernet cable) to connect to my router. There are three other computers on the same network, connected to the same router (one wired, two wireless), and they don't have this problem. I got this computer a few months ago to replace an old one, and the old one (connected with the same cable to the same router) didn't have this problem either.
Does anyone have any idea what could be causing this?
Thanks in advance!