TOPIC:

Hi folk,
suddenly my SHD is no longer reachable via my smartphone. Both Apps "Volumio" and "Bubble UPNP" are not able to connet to the SHD.
On the other hand I can reach the SHD via the IP-Adress.
What happened?
Is it the same issue Tecstock had with his SHD in his thead "Minidsp shd not reachable via Volumio android app"?

greetings from Germany
René

You could try to turn off all network devices like router, switches, wifi access points, SHD, mobile device that is running the control app,
. And then turn them on again starting with the router.

Also it could help to configure the router to always give the SHD the same IP address.

In most cases difficulties in discovering upnp devices have to do with IGMP snooping. If you have a device with a faulty igmp implementation you could try to turn the igmp snooping off (in switches, access points, router. All devices that are between the mobile device and the SHD). But not all devices offer a disable option for this like the fritz box AFAIK.