Thanks Meter 310
Join Date: Nov 2009
Location: Long Island, NY
I have this same problem on my Galaxy Nexus. Put your phone really close to your router (a few inches) and I bet it will connect on the 5GHz band.
If it connects at really close range then you know the hardware is damaged... my guess is samsung has some kind of serious design flaw in their phones for this to be happening to so many people on different models of their phones.