My new computer was delivered December 21, 2012. Imagine my surprise that I can't connect to my wireless connection unless I am less than 10 feet away from the AT& T wireless router. There are 3 computers 1 floor up and 30 feet away that can connect, so I know it isn't that the signal isn't strong enough. Please help me fix this so I don't have to send this computer back. My Inspiron 9300 that I have had since 2005 can connect and I am using it right now. Here's my specifics.
17r SE 7720
Windows 8
1 T hard drive
8 G RAM
32 G SATA Drive
Inter N-2230
AT&T internet wireless router.
The new computer will hook up when extremely close to the router but it does lose the signal occasionally even though I am only 10 feet away.