A few months ago I set up a wireless router and added PCI wireless cards to our 2 desktops. Mine's worked fine since the install, laptops connect up no problem (insert WEP pass and away you go) but the other PC's situation keeps getting worse. The first sign of problems was when the wireless connection speed given in the connection details screen started dropping to 1mbps (from 24+ usually) consistently whenever a browser was used, and now connecting to websites either takes a few minutes or doesn't work at all. Strangely email software would still work without these massively lagged responses though! When I first set up the PC I think it would connect via DHCP without putting manual TCP/IP settings in but now you have to specify everything otherwise the "this connection has limited or no connectivity" warning comes up and it never works... Although this problem arose some time before this sudden nigh-complete failure. I've tried just about everything I could think of at the minute:
- changed wireless network settings - channel/encryption etc
- swapped wireless cards, both perform exactly the same on the other yet work fine on my pc
- uninstalled drivers / removed card / reinstalled drivers / added card (in a variety of orders)
- tried different PCI slots to no avail
- repaired windows
- formatted & reinstalled windows
So I suppose it's most probably a hardware problem with the PC but I have no idea what it could be. Any thoughts as to what else I could try to get it working before I have to end up taking it to PC World so they can tell me they have no idea too and try to sell me a new one?