I have a dell inspiron 5150 notebook, it connects to the internet thru a dell truemobile 2300 router. On saturday, my laptops cord had fallen out, unbeknowst to us, the battery ran out, and it abruptly turned off on us. After reconnecting everything and rebooting I found that I could not get on the internet thru both the Firefox and IE browsers, plus thru a online game by the name of World of Warcraft. Our desktop computer which had a direct connection to the router worked fine.

I tried resetting my router, removing the power cord from the router, repairing the connection thru the laptop. But it did no good. I finally used the same cord that our desktop connected to the router and hooked it up to my laptop and found that it still did not work. I even bypassed the router and DIRECTLY connected to the comcast cable modem, again without sucess.

But I did find something very odd. One program on my laptop was able to connect to the internet. A Instant Messaging program called Xfire. It worked fine without any screw-ups. And I was able to chat online. But every other online program would not work at all. Whatever the problem is it seems to be isolated to my laptop. I'm not sure if its my network card or not, and I really don't UNDERSTAND how the HECK I could connect to xfire wirelessly, yet nothing else would work.  And I'm not sure if the SUDDEN power outage on the laptop caused anything to mess up....

If this belongs in software sorry, but I really can't tell and I don't see forum areas for network and internet issues.
Hi

Are you running XP?
Try system restore if you are.
If you are GOING wirelessly check that IE/Firefox are not using an older internet connection.

Tools> Internet options> connections> and it should be set to never dial a connection as the router now holds the access information.

HTH
Jim.