Laptop (Win7 Dell Inspiron 1525) won't connect to desktop (XP Dell) wireless router

[kle1337]

My home desktop is connected to a wireless router through AT&T U-verse and it's broadcasting just fine. I can see the name and everything when I try and connect on my laptop but there is always an error that brings me to a troubleshooting screen. I've made sure the password is correct by going to Start-Run, IPCONFIG and then typing my IP address into the address bar in my browser. I dont know what else I can do, I feel like I've tried everything! Help please.

 

[raybay]

Sometimes, you need to replace the router.
Sometimes, you can call your service provider and ask them to take a look on line to see if the subscription needs to be refreshed.
But often, all that is needed (despite the fact that it is a lot of work) is to uninstall your existing system, then reboot, and reinstall everything.
You might also find success by looking at your device manager in Windows to see if you have any grey, red, or yellow flags by any related device. That may show you have a permanent hardware failure if you cannot restore it, then you are off to the store or your provider for a new cable modem or router.