Configure your DBC with PPP(oE) details and if there's DHCP server, enable it and disable DHCP on your Beetel making it just an access point. You can google "dump ap setup" for tutorials. If there's no DHCP server option on DBC connect it Beetel as wan with dynamic IP or static however it's working now. That's it.
By workload I meant they aren't very powerful devices but I think it'll be fine in your case.
By workload I meant they aren't very powerful devices but I think it'll be fine in your case.