I have a Draytek Vigor 2862ac with a slow ADSL connection which I want to load balance with a 4G connection. The 4G connection is via a TP Link Archer MR200 (also known as AC750). The TP Link gets a good 4G signal in my loft and I have an ethernet cable from this to the WAN2 connection on the Draytek.
The Draytek gets and IP address from the TP Link so it can definitely see it but for the life in me I can't get any traffic from devices connected to the Draytek to route over the TP Link.
I'm thinking it's a configuration problem with the TP Link but no idea what - has anyone else got a similar setup working?