@brutha_analog 

If you are not able to see the 5GHz, make sure the device you are using is capable of seeing 5Ghz. With the Tether app, go to the wireless settings and look at the extended 5Ghz name, it may be the same as your main wireless network so there is no different one. If so, add -ext at the end so it is different from your main Wi-Fi.

If that does not help, factory default the extender by holding the reset pinhole for 15 seconds while it is plugged into the wall. Once the extender power LED is solid look for the 2.4GHz and 5GHz Wi-Fi networks. If you only see the 2.4GHz there may be an issue with the 5GHz radio on the device.