Same exact problem on my TL-R470T with a v.4 hardware the latest firmware. WAN 1 is connected to a wireless AP and WAN 2 is connected directly to a network switch with a cable modem on it (and a...

I have a very similar issue. I am using the TL-R470 on a boat. WAN 1 is a T-mobile cell modem and WAN 2 is a wireless access point set up in client mode. When the boat is in the marina, the wireless...