Clearly there is an error in the system, it has already been connected to this same wifi, all my wifi networks 2.5 ghz, 5 ghz, and my range extender all use same passcode. It fails with each of these sources. I have tried multiple attempts. Now my lights are all red and my batteries are all blinking/dancing green. I need help.
Can you connect an Ethernet cable between your Gateway's RJ-45 Ethernet port on the right side of where the (2) USB ports are, and then connect to an Ethernet port on your router?