The computer in question is running Windows Vista Home Basic 6.0.6002 SP2. It is usually connected to the internet via a Verizon Broadband USB727 usb card modem but started having problems with connection on Monday.
The problem is that it will not connect to the internet (IE cannot display the webpage), even when the usb card says it is connected, or when it is connected to my router via ethernet. Usually the usb card will show an error in the taskbar saying that there is "limited connectivity", but sometimes it shows a solid connection and there is still no internet. In internet explorer, when trying to open a page like google or hotmail, I get an error message saying "Unable to open the search page". It will sometimes show "ieframe.dll" running in the corner. I've also tried running a portable version of google chrome and get an "Error 105 (net::ERR_NAME_NOT_RESOLVED): Unable to resolve to server's DNS address. This happens even when directly connected via ethernet.
What I've tried:
Pinging verizon's DNS for the card (126.96.36.199) results in a clean ping. But I am unable to ping www.google.com.
I've tried uninstalling the card's driver and reinstalling. But the fact that the card works with another computer makes me believe it is not the problem.
I've run mbam and pulled 4 results all connected to the koobface worm. Cleaned, restarted, and later scans show no results.
I've run ccleaner and cleaned internet files and registry issues.
I've reset the IE options.
I've run winsockfix.exe
I've run a reset.bat with:
netsh int ip reset
netsh winsock reset
netsh firewall reset
shutdown -r -t 0
I've checked LAN Settings to be sure proxy settings weren't in place (however, by default, LAN settings are greyed out and I could only access it by changing a key in the registry. Within LAN settings, the "Use automatic configuration script" box is checked and the address reads: "http://127.0.0.1:2372/wpad.dat". Even if I remove this and uncheck it, it doesn't help and comes back on the next opening of IE, and the reg key is changed back)
I'm sure there are more things I've tried, but I can't think of them right now. I'm going on 8 hours working on this piece of joy.
I'd appreciate any help you can offer.
Edited by freestud, 13 October 2012 - 11:19 PM.