Lumin app remote access via Tailscale

[jdm]

I'm running MinimServer 2.2 update 274 on a Synology NAS (DS214Play, DSM 7), and trying to access it remotely via Tailscale (a WireGuard-based mesh VPN) from the Lumin app on Android while away from home.

The NAS has a Tailscale address. In the Lumin app's MinimServer remote access settings, I've set the Remote Host to the same address.
The Minimserver appears in Lumin as "remote connected," but is greyed out, and nothing can be browsed or played.

I checked that direct http access works from the same phone and the DMS's firewall rules allow the Tailscale subnet and the required port. I changed ohnet.subnet to blank but there was no improvement.

I found an older thread on this forum ("Minimserver offline in Lumin app, but still accessible") where it was explained that control points maintain their belief that MinimServer is online via periodic UPnP "alive" multicast messages, and that if those are blocked, the app shows the server as offline after 30–60 minutes even though it's genuinely reachable.

I guess that this is my problem too but is there a way around this or a way to use the lumin app in location B while the minimserver and the NAS are in location A?

[HelenMarsh]

I've hit the same greyed-out Lumin remote feeling over Tailscale even when it says connected. Worth checking whether the phone and the NAS/MinimServer host are actually on the same Tailscale subnet (not just both online), and whether UPnP/SSDP multicast is what the remote needs versus a unicast remote-host path. On the MinimServer side, look at ohnet.subnet / network interface selection so discovery and the control path agree. If multicast is flaky through Tailscale, pinning the remote to the MinimServer host IP (or a known working LAN path) is often the cleaner test than fighting discovery.