Or you have 2 odd wifi parts (the old router and that laptop.)
When I see this I try the old second wifi router trick. It's about post 18 in this forum. Armed with router #2 plugged into an Ethernet port of the first router setup per this forum's stickies it usually cures the issue. It will not cure it for those that insist on one router or can't accept a dual wifi router solution.
I have a simple netgear wgr614 router thats been pretty rock solid for the past year or so. It's connected to a AT&T Westel modem, hard wired to my desktop and I have a laptop (XP) and HTPC (Windows7) connected wirelessly.
Problem is, I cannot get a stable signal to the internet on the HTPC. I see the signal strength and it's good, it connects to the internet, accepts the security key and appears to work then it just won't pull anything down from the internet.
So I switched from using my old no-name brand PCI card to a new Belkin F5D8053 USB adapter. Same thing. When I go to the first website, it's really slow. Then it just spins forever.
So I turn on the wifi on my phone and broadcast it. Connects to the phone perfectly, YouTube, Hulu, you name it. It all works fine. Go back to my network, and crawls to a hault.
So I go back to the old PCI adapter and try it on my phones wifi and it works fine.
Meanwhile, my wifes laptop is getting a signal the whole time, even in the basement with less bars and she's still able to watch Netflix stuff.
So I have a router that works fine with everythining except my HTPC and two wireless adapters that seem to work on wifi but not connect to my network and share internet. I'm totally lost. Can anyone suggest some other tools to check my wireless connectivity issues? BTW, I tried with WPA and with no security at all and it was the same. Totally lost. ??????