1. I have 2 Archer BE550's in an easymesh setup. 1 main router and sattelite router. I have enabled HTTPS administration in the menu: Advanced -> System -> Administration -> "lokal styring". I logged in using https://<IP-ADDRESS-MAINROUTER>/
2. If I try to login to the satelite router using https://<IP-ADDRESS-SATELITEROUTER>/  I get a notification that HTTPS is disabled on the satelite router. I instead have to login using http. 

I my opinion this is an error in and should be corrected. If I enable HTTPS administration in the webinterface on the main router, the satelite router should also require https as access protocol for the webinterface.

IP-ADDRESS-....... is offcourse a placeholder for the real ip-address the routers use on my network.