Hi All, I have some users on laptops that go between the LAN (Novell & NT combo) and a cable modem (at home internet access). Things were working okay until just recently. Now one of them cannot get an IP renewal when they switch between the different networks. I currently have a couple of simple batch files created that the user double-clicks to force a release and renew of the IP address. It appears to be the laptop by my estimate, seeing as the other DHCP machines have no problem....knock on wood. I plan on uninstalling and reinstalling the TCP/IP stack to see if that might help. I've also installed service pack 6a for NT. Possibly handy info: Dell Inspiron 7500 laptop (P450), NT4 with svc pk 6a, 3COM Fast Ethernet 10/100 BASE-TX PCMCIA card, IPX/SPX & TCP/IP protocols. Any ideas what might be causing the IP renewal problem? Thanks in advance! Lance Kephart Send FREE April Fool's Greetings to your friends! http://www.whowhere.lycos.com/redirects/American_Greetings.rdct Curious about the people moderating your messages? Visit our staff web site: http://nospin.com/pc/staff.html