I am trying to use the TP-Link dyndns and I have created my domain xxxxx.tplinkdns.com, the status is "bound" but the moment I leave those settings and I return to them again it is back on DynDNS. How

I am trying to update the firmware of my RE505X but keep getting "Unable to connect to the cloud server. Please try again later." I have tried hours and days later but still the same message. This wou