STEP ONE
Install Tailscale on QNAP or Synology NAS
If you’re new to Tailscale, you’ll first need to create a free Tailscale account and download the app to your NAS.
QNAP
Synology
STEP TWO
Install Tailscale on iOS/Android
On your phone, download the Tailscale app and install it.
iOS: https://tailscale.com/download/ios
Android: https://tailscale.com/download/android
STEP THREE
Test Tailscale
Restart RoonServer and ARC on your Windows machine and your phone.
Turn off WIFi, leaving only the cellular data connection. Open the settings page in ARC and look for “Connected” to see if ARC is working.
If not connected, go into Roon and disable port forwarding. Go to → Settings → Roon ARC and enter “0” in the box for “Port”. If successfully disabled, you should see “Not Ready”
Some networks have port ranges reserved. If 0 or another number is not accepted as input in the “Port” box, try a few different numbers until the “Not Ready” status displays.
STEP FOUR: FURTHER RESOURCES
If you’re still having difficulty using ARC with Tailscale, please post on Roon Community in the #tinkering category, where users are accumulating Tailscale/ARC expertise.
We recommend engaging Tailscale support directly - they offer robust and responsive support and are better equipped to troubleshoot within the Tailscale app itself than Roon support. Please see their Support page here to reach their team.