I can't connect to the Internet using IE6 if I leave it idle for a couple of hours. My PC is connect via a LAN to a 3Com wirelss firewall router and we have a MAC connect wirlessly which isn't affected.

I have set the modem to be always connected and because there are no problems with the MAC I assume it is IE6.

I have set IE6 to connect automatically and don't know waht else to try.

Any suggestions please?