Thanks for all of your answers.
Now your router should be handing out DHCP addresses in a private network
I do not think this router uses DHCP, because I do not use any of the automatic settings. Secondly, the IP I set in my TCP/IP settings is actually the one that the outside world sees.
Realtek is known to produce "shit" in the first place so why don't you try another network card
Well, it's a laptop you see and besides it's integrated. If all fails, I will buy a PC Card ethernet adapter, but that's my last resort.
can you ping the card and get a response... ping 127.0.0.1
also make sure its set to auto negotiate and check the modes under half duplex/full duplex
Yeah, I can ping my card without any problems. I have also checked the duplex modes.
Well, if that is indeed true, that means you have 2 puters with the same IP
I'm sorry, perhaps I haven't made myself clear. I do not use this connection simultaniously with both computers: it's just one or the other (and since the ip's are not assigned automatically, it's not a problem).
I'll try playing with the DHCP stuff, but I seriously doubt it will get me anywhere.