win xp home running on Compaq laptop NIC on motherboard (Intel Pro/100 s mobil) . will not relase/ renew ip. Connect to internal network. Using cable modem. I have other computers connected to the internal network so I know it is working. I haved tried the following: uninstall/reinstall the on board NIC; connect to a different router; connect directly to the cable modem; install a pc card (linksys 10/100 lan card). I am still not getting release renew to work. was working when I took it off client network. cannot be it to work on my network. I've run out of ideas. Any help?