Networked PC lost connection internet connectivity

I had my HTPC up and running last night, watched a movie, turned it off and went to bed. When I woke up this morning I found that I couldn't get any sound while playing videos through my web browsers, thinking it might be a video card issue I first checked some of my movies, but they also wouldn't play with sound so I deleted my nvidia files and reinstalled them. No luck, on one restart I lost my internet connection with my router. If I look inside the Buffalo's settings, I can see my HTPC's IP address (after running ipconfig /all on the htpc) I did a system restore but that didn't work. I even went so far as to do a clean install of Windows on the HTPC, but that also didn't work. I keep getting the yellow triangle and the message "unknown network" The HTPC tells me to check my router, which I have restarted a number of times unplugging the cable modem and the Buffalo. Turn on the cable modem get it online, then plug in the Buffalo, but nothing works. I have tried switching ethernet cables, ports, but no luck. Any ideas? Help?? Thanks in advance.

Both HTPC and Desktop are running WIn 7 64 bit

Hello,

Can you copy and paste the ipconfig /all into here?

Also, right click Computer and select manager. Go to device manager on the left hand side. Do any of the devices have exclamation marks next to them or say unknown?



Dave

fixed this thanks

Glad to hear its sorted (Y)

Dave