Yeah there's a lot of compatibility issues with Wi-Fi routers and Wi-Fi cards. For example, my Sony Tablet P recognizes a router made by BUFFALO, but Nexus 7 nor my iPad mini recognizes it.
The ideal situation is same company Wi-Fi router and Wi-Fi card, but they still may cause problems... so yeah, try getting a router or Wi-Fi card that works well without compatibility issue.
Edited by stingraze 2013-07-18 12:50 PM