Semi-Complicated Network

Well, I can understand that frustration. At first when the monkey crew was still getting the tower equipment fine tuned it was a bit of a challenge. If you can't get into it to make changes you can reset it to factory default and use the credentials on the bottom to login as admin. Setting up the SSID and WPA key for each channel in the web-gui is not too bad. You should have the 2.4GHz channel and the two 5GHz channels set. I used the same on all three. If you have any 802.11n clients that will need both a 2.4GHz and 5GHz channel the same to function due to how the 802.11n standard works. Newer clients with 802.11ac may not have that issue. Standards for wireless are rather confusing. Loads of fun for tech heads but not for the average Joe.