Alright, I'm having a weird issue with my friends computer.
The internet went out last week and she was on the phone with the ISP for a good 4 hours troubleshooting and the ISP finally determining that she 'probably needs a new computer' (good service). Basic troubleshooting steps like, rebooting router, modem, disabling the LAN/re-enabling, blah blah blah.
I work at a computer repair shop so she asked me to help.
One of the first things I tried was the Resort to Last Known Good Configuration at the boot menu. Didn't help.
The computer has the same issue at my place and my work. I have tried uninstalling and installing the network driver multiple times and still the same problem, can't connect to the internet. Going into safe mode I notice I can get a connection for about a minute before it shuts down and says unidentified network.
Initially I was thinking maybe a virus/spyware, so I run multiple programs such as malwarebytes, spybot, super antispyware, tdsskiller which all found minor spyware and a few trojans that I removed. Problem still persisted. Even ran ComboFix, still nothing. I ran a few commands for resetting the TCP/IP stack, flushing the dns, still nothing. I noticed that sometimes I could see the gateway with ipconfig and other times I would just get a 169... address.
I installed a new NIC card into her motherboard and at first the motherboard wouldn't even recognize it there. I tried installing the driver for it and still didn't work. I then wanted to try a test to see if maybe it really was a virus or something to do with the system services. I installed Windows 7 onto a different HDD, after I got to the desktop I saw that I still did not have an internet connection even after installing the network drivers and the new NIC card I installed still wasn't showing up in device manager.
I then think, the motherboard is hooped. Last resort, I pulled out the battery on the motherboard for 5 mins and reinserted. I booted back up the old HDD for vista and now it see's the new NIC card and I got an internet connection. I was ecstatic gave it back.
Now, after a week later, I get a message from my friend saying the internet doesn't work again... does anyone else have any ideas before I say.. it's time for a new computer?
Sorry for the long post and thanks to anyone who can help!