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This problem usually has to do with a secondary default gateway. Follow this guide on how to fix the problem.
Windows 7 Unidentified Network, Limited Access, No Internet Connection Problem Resolved
You can also try to fix it this way.
Unidentified Networks - Set as Private or Public
Nope those fixes didn't work either.
However I did discover when I ran ipconfig /release that I would get this error:
An error occurred while renewing interface local area connection: The system cannot find the file specified.
At this point I'm going to backup all my files and run system repair. If that doesn't fix it. I'm going to then do a clean install. I'm crossing fingers this will work.
Before the reinstallation, I think I might be inclined to clear the cmos and flush the dns then renew the IP and try again.
Well after this started I have already flashed the BIOS with the latest BIOS (I was one BIOS down from the latest) for the motherboard which also cleared the CMOS.
I just got finished with formating my hard drives (RAID 0) and re-installed Windows 7 64-bit Ultimate. The fresh install of Windows 7 still got Unidentified Network. At this point IMHO the Chipset on the motherboard is horked (which would explain the complete hard lock I got before rebooting and then having this problem) since even the PCI network adapter card was getting Unidentified Network.
At this point my only choice seems to be getting a new motherboard or just buy a whole new PC. Which is a real shame since I had just upgraded the CPU and RAM last summer. The PC is only 2 years old.
Thank you guys for all you help eventhough it seems futile at this point. If anyone has anymore thoughts let me know. Otherwise it seems my path is clear now. I guess I know what I'll be getting now for my birthday in two weeks.
I've also experienced this problem. Is your network DHCP-enabled? Or static?
OMFG!!!!!!! I got my desktop to go online! (I'm typing this from it right now). How I got it fixed was this and it amazed me that it work since I figured reseting the cable modem would have done this as well. First I disconnected the coax cable from the cable modem. I then connected my laptop to the cable modem. The laptop was assigned an IP from the cable modem and the default gateway was the IP address of the cable modem. I brought up the cable modem's web page in explorer but it had no settings you could change or adjust. It just has stats, info and log files. After that I decided to run ipconfig /release on my laptop. Now I had run that before but that was the cable modem was still connected to the coax cable and the laptop had internet access. I then powered off the laptop and then connected my desktop back to the cable modem (still without the coax cable). My desktop was the assigned an IP (different from the laptop one) by the cable mode. Ecstatic that I finally got something other than a 169.x.x.x. I then plugged the coax cable back into the cable modem and horray my desktop went online for the first time in almost a week. Now I won't be getting a new PC or motherboard and I'm actually happy about it!
Now I just need to get everything reinstalled and reconfigured after I had reformatted earlier. Looks like I've got hours of work ahead of me. Oh well, live and learn.
Hope this might help anyone who runs into something similar.