Why does this crap always happen to our computers? This time it's Linda's laptop. Every time she reboots, it work fine for 10-15 minutes, and then the connection drops. But wait - it's only the browsers. She can still use IM, she can still ping the router and yahoo.com from a command prompt, but neither Firefox or Internet Explorer can bring up any web pages. Not even the router.
I've run virus and malware scans, I've checked the HOSTS file, restarted a couple services, and changed many router settings, but nothing has fixed the issue. I've currently got Spybot running a full scan in safe mode on her machine, but I'm not hopeful.
Here's the interesting thing: I've found a number of other sites with people describing the exact same problem, and no one has found a solution other than reinstalling the operating system. Aack. Guess if all else fails, I'll try that this weekend.
Try typing IP addresses instead of names. Here are some you can try:
http://209.85.171.99 -- Google
http://207.46.232.182 -- Microsoft
http://63.245.209.10 -- Mozilla.com
You have to type the protocol (http://) into the browser if you use an IP address. If the numbers work and the names do not, you're most likely looking at a DNS problem. Before you run off and reinstall Windoze, try reinstalling TCP/IP.
At the risk of beating a dead elephant, as cryptic as UNIX is, these kinds of problems are a lot easier to ID. Ever consider Linux?
If I think of anything else, I'll let you know. Good luck.