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I have a Windows 7 machine that also has Ubuntu on it. Yesterday the NIC spontaneously crapped out. I went and got a Dynex PCI NIC and set it up, my computer now finds networks but lists them as "unidentified" with either "no internet access" or "no network access".
I can't seem to detect other computers on the network either, so I do not believe it is even properly connecting to the LAN.
Things I have tried:
Reinstalling/Updating NIC drivers.
Restarting Router
Restarting Modem
Hooking desktop directly up to the modem's output (no router in between)
ipconfig /flushdns
netsh winsock reset
ipconfig /release (gets an error, doesn't complete) ipconfig /renew (gets an error, doesn't complete)
Trying to connect on Ubuntu (NIC is detected succesfully, but no connection is made)
Running the computer on an entirely different network (same ISP though, but one is a business connection and one is a personal/home connection)
setting up ipv4 info manually with static ip
connecting via WiFi adapter
connecting via Android phone w/ internet passthrough feature (detected as a network adapter, drivers installed, network found, exact same issues as with the NIC and the usb adapter)
WiFi on different networks
The only thing I can think of at this point is maybe a service running on the computer that is causing issues. However, I did a restore to 2 days before the issue began, and the problem is the exact same, not to mention it won't connect on ubuntu either.
Any ideas?
JonathonG
Posted 2012-01-27T22:27:43.313
Reputation: 349
Cable problem? Have you tried if any other computer can use the same cable to get online? – billc.cn – 2012-01-28T05:48:35.783
Yes and, like I wrote, I have tried it on WiFi as well. I did verify that the cable provides network connectivity / internet to other computers. – JonathonG – 2012-01-28T07:54:34.857
@JonathonG so other computers can connect with the same adapters to the same network through the same router and modem; in other words, you have narrowed it down to that one specific system's hardware? – Synetech – 2012-01-28T08:12:12.583
The Ubuntu that you tried is an already installed copy right? Try using a boot-disc OS like Knoppix, Bart's PE or other live CD (ie, pure, uncorrupted, unspecialized, uncustomized OS). If that works, then it is software (try—at least a temporary—a repair-install). If not, then it is the hardware; specifically the motherboard since you've tried different NICs and adapters. – Synetech – 2012-01-28T08:14:33.457
Yes I've pretty much narrowed it down to the hardware, but I didn't know it was possible that the motherboard itself could somehow be preventing the connection, since both USB and PCI adapters have been tried with the same results. – JonathonG – 2012-01-28T08:45:55.720