I just had my service installed Thursday. I changed the username and password. Of the 5gh band. Since then I have only been able to connect to the 5gh band on my mobile phone. 2 computers and a ps3 can only connect to the 2gh band.
I have restarted my box 5 times already and it still is not showing up.
I have read a few threads on the issue but they were old. I used the information in them to try to figure this out in my own but no such luck.