New build can't get net

[suptt]

Got the new rig up and running last night and everything was working fine, was on playing CSS for like 3 or 4 hours. However, I had to unplug the ethernet cable last night to hook it up to another computer for the internet and when I woke up this morning and hooked it back into my new rig I cant get a connection. It just says network cable unplugged. I have done what I usually have to do which is unhook the power cable to the cable box and plug it back in after it resets, but I have done this a number of times and nothing is working.

 

[peterhuang913]

Check device manager for yellow exclamation marks. Are drivers installed and up-to-date? Latest windows updates? NIC or onboard?

 

[suptt]

Thats the thing I updated everything last night. But now I cant even get on the net with it.
Could the problem be that I installed windows on my new rig that came with my dell laptop and I dont have a cd key for it? Because I can't update any of my windows programs due to the genuine validation crap. So maybe the motherboard and the windows are not compatible until I can update windows. I mean it wont even let me update to SP2

 

[lancec2c30]

Well, I think it would be for the wiser to somehow get windows to update and get everything up to date.

About the internet, try re-installing the drivers for the motherboard.

 

[chuzl]

Have you tried to config your network attributes?
Ping the net in the command line to see if your host can connect it.

 

[superdave1984]

Check your TCP/IP settings and be sure you are set to automatically gwet an IP and DNS settings. Also check services to be sure DHCP client is running.

 

[suptt]

I can get the net with my laptop with the same connection, so I am assuming that the connection is good. And yes it is set to get IP automatically.

 

[Swillz21]

Do you by chance have a computer with dual on board nics? If so plug it into the other port and try again.