TCP\IP not working?

Question

I'm working on a system that is having major problems. It's a Windows XP Home Ed. system, the guy called and said he was unable to connect to his DSL so he called Verizon. After calling them it started working, then the next day nothing worked. Now it won't DHCP or even able to connect to Verizon through a static IP. When I hook it up to a router with DHCP services it only shows 0.0.0.0 no real address. I checked the router and the router is fine. I thought it was the NIC so I swapped NIC's and still the same thing. Norton antivirus even pops up with an error stating I need to disable my e-mail scanner since TCP/IP is not installed. So I repaired the installation of XP feature on the CD where it reinstalls the OS while keeping all your files and settings and still no luck. Any ideas?

Answer 1

Does your NIC show that TCP/IP is installed? Does it have all default settings?

If so uninstall or disable any firewall software on the machine.

You can also reset the tcp/ip stack at the command prompt with the following cmd:

c:> netsh int ip reset resetlog.txt

Answer 2

swap out the CAT5/CAT6 network cable. while it is rare that a network cable will fail, it can and does happen. also power cycle the modem and router.