I'm trying to use synology drive sharesync to sync a folder from one synology device to another across a wan (internet). Based on instructions it's supposed to be port 6690 that needs to be port forwarded through the firewall. We use Watchgaurd firewalls. SO I have 6690 forwarding at both locations, I have Drive sharesync setup at both locations. I setup shared teams folder at both locations, QuickconnectID shows both devices are connected. I can never get past the initial screen to connect. Anyone work with this before maybe has some insights or tips?