controller cannot see minimServer

[ppienter]

I came to this post since the minimserver installed on my QNAP-TS419PII (up-to-date with actual version) is very slow in discovery on different controller apps I've tried.

On my receiver it's always available but then again, the network is always on in standby mode. When I switch of the receiver completely at also takes some time to discover the Minimserver

I have 3 DLNA 'servers'. The first 2 show up almost instantly and for minimserver it sometimes takes up to 5 minutes.

Also switching of the other DLNA servers doesn't help

After reading this post I did not find a solution.