Cannot connect to network/internet

[CaneFan]

I recently built a new PC with an Epox 9npa+ Ultra motherboard and an onboard gigabit ethernet port. Everything worked fine for a while. I was able to connect to my router and to the internet.

After a while, I could no longer connect to the router (wired connection) to administer it or to the internet. I cannot ping the router, but I can ping 127.0.0.1. When I ping the router, windows says "Destination host unreachable." I tried disabling the onboard NIC and using a PCI network card and that failed. I also tried using Knoppix linux to see if I could connect and that failed as well.

Does anyone have any idea what might be wrong or what I could do to fix this?

 

[vi edit]

Pull up a command prompt and do an "ipconfig /all" on the computer.

What is the IP address it gives you, and what is the default gateway?

It sounds like the DHCP services on the router are messed up. Can you statically configure the computer to sign in?

If the router has an IP of 192.168.0.1, you can statically assign an IP of 192.168.0.10 to your computer, a subnet of 255.255.255.0, a gateway of 192.168.0.1

Don't worry about DNS at this point. See if you can then get into your router.