I have 5 and 2.4GHz bands configured on my Archer C7 with corresponding SSIDs on my ASUS RT-AC68U in Access Point (AP) mode, giving me pretty good coverage throughout my house. Since I have guests, I created a guest network on the C7 on the 2.4GHz band. On its own, it works well, but when I create a corresponding SSID on the ASUS, devices fail to authenticate. The SSID, wireless security, password, etc., are all the same. Any thoughts on what I might be doing wrong?