Can't find 5 ghz connection on my PC.

[shoozter]

So I recently switched to att uverse, at first all the connections was being found. But yesterday there was a problem on our landline and the att support did a hard reset on the modem which reset all of the settings. The 5ghz connection cant be found on my pc or my xbox one, but it is detected by my cellphone and ipad. Is there a way to fix this?
EDIT: forgot to add that I have the Asus PCE-AC68 adapter

 

[civers1]

sounds like the 5Ghz band is turned off by default. I currently have a linksys that does the same thing. Log into your router configuration and check and see. If you had the model of the router, someone could post an explanation on how to log into your router if necessary.