Ive a 3 year old acer that is hard wired into a sky router. Yesterday I logged on but was unable to connect to internet. All wireless PC etc in house work fine.I hard wired a different PC and that worked so it appears to be my PC. It wont even connect with a belkin usb wireless.
Its still on windows 7.
Any advice ??
If the above don't work then unless the cable is faulty I would check the NIC Adaptor settings first (Compare them with the one that works). Can you access any other computer on the home network. If not then maybe the network hardware has packed up. Try fitting a new Network Card, they only cost around £10.
Alan, I doubt it's a hardware problem as the OP can't connect with a USB WiFi adapter either. Sounds like a Windows problem to me and a System Restore should help. If not then the System Restore can be reversed.