I'm in a fix now. The computer in question can connect to just about anything on the network (with 2 other comps), but won't connect to the net. That means it can connect to the other 2 comps, access and copy files from them, can access the router/switch and change settings, etc, but won't connect to the net. The other 2 comps can connect with no problems at all. I've changed the cables, I've changed the NICs used, the only way I can connect to the internet is if I connected straight to the modem (and switched the settings from bridged to non-bridged). I've switched off windows firewall. I've got anti-vir on, but doesn't help if I switched it off. I might also mention that barely 24 hours ago I was happily connected. I messed around with the router/switch, but it was the usual stuff I do when the net's down (and it was down about 12 hours ago). Check if bridged option on, check if username password correct, stuff I used to always do when the power goes out and resets the router/switch (till I realised there's a save option). Anyway, I believe it has something to do with my comp. Any idea what may be causing this?