@TP-Link @David-TP X50-4G needs an option to chose fixed Wan port.

@C0deape Sadly, I haven't found that setting. It's not under Advanced, not under Offline Detection or anywhere else that I can find. It's strange, as X20 or X80 with cell backup got that setting, but...

@TP-Link Are there any progress on this issue. I got X50-4G, and using it as wifi-router, with my fibre connection as primary WAN and 4G as backup. When my fibre drops out, it uses 4G to provide, but...