Well, I'm stuck in a bit of a problem.


May 14, 2010
Well, I'm stuck in a bit of a problem.

I have a network, with a router, switch, and several computers, and it all works fine.
But I have this one computer, my main computer, with critical work information stored on it, and when I connect it to the network, it works nicely for the first 5-20 mins, but then it would get terribly slow, and the internet and the rest of the network will clog up. Pings from this computer to the router jump from <1ms to >3000ms to timed out. The internet will still work, but whether the site loads is hit or miss, and incredibly slow. The computer is a new computer (Ivy Bridge), and has been working fine for months, running Windows 8.
The router is the CG3100D-2BPAUS, if that helps.
It can't be a problem with the Gigabit switch because even when I connect this computer solely to the router, the same thing happens.

Has anyone else had this or similar happen to them? Any suggestions?
Thanks a bunch.


Sep 16, 2011
Sounds like it could be a router problem.

Have you done a speed test?

First of all I would ring your ISP and say that your internet is running really bad and keeps dropping connection ask them to do a line test, they will ask the usual rubbish like have you changed the micro filter or the router just say yes.

They will run a line test, if they come back and say no fault found then replace the router, otherwise thank me later when they fix problems on the line!
You can do a series of tesats for yourself to try and narrow it down a little. Connect the modem directly to the computer and see if it does the same thing. Then try the modem to the switch and then the computer and see if it does the same thing. Then try the modem to the router to the computer and see. All of these attempts are with just the one computer and no other devices connected.
Normally are you connecting this computer to your internet by ethernet cable ? Have you tried a different cable ? Are the drivers for the lan chip on the motherboard up to date ? Are you using a seperate addon card for a lan connection ? Is this computer the only one running Windows 8 ? If it is then you may need to resetup your home network using the Windows 8 computer and making a setup disc for the others to use if they are not all running Windows 8.