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When using my HEOS app and browsing my NAS based MinimServer, I keep getting “no media” for several tries before getting a listing, then the same thing happens when trying to choose a playlist and so on until I get songs to play. After that, songs play fine until I try to switch playlists and the whole thing starts again. The MinimServer shows up every time in the list of media servers, no issue there, but the contents will at first refuse to do so with "no media" showing up until, after several frustrating tries, I finally get through. If, on the other hand, I use the media server that comes with my Synology NAS everything behaves as expected with no issues at all.

My Denon AVR on the other hand works perfectly and I can choose playlists and music from MinimServer with no issues. Denon keeps telling me that HEOS needs a DLNA "certified" server while the Denon AVR is more forgiving and wash their hands of the issue so is there any setting in MinimServer or MinimWatch that I can change to make it work?

To recap, I can get the server to show up, it is when I try to list contents that the "no media" message pops up.

I use the HEOS app on iOS 9.3 devices connected to an apple extreme base station which is connected to the latest version of MinimServer for Arm on a DS411 Synology NAS running DSM 6.0. The wireless station has multicast routing and IGMP snooping enabled, that was the first thing I was told to try.

Since the setup works fine using my Denon AVR, I think I have eliminated the network as part of the problem. Also, since I can get the HEOS app to work without issues with the Synology Media Server that seems to point to something about the DLNA response that MinimServer sends to the HEOS app in answer to the list command that does not always work. It is close enough that it will work sporadically but only about 50% of the time which is weird.

This is driving me nuts since I much prefer using MinimServer to the synology application. Any ideas?
The first thing to try to disable IGMP snooping. In most cases, this works better than having IGMP snooping enabled. After doing this, reboot the wireless station. Does this improve things?

If you are still getting the problem after making this change, try waiting a long time (10 to 15 minutes) before making the first attempt to browse the MinimServer library. If you do this, does the library listing appear at the first attempt?
OK, disabling IGMP snooping had no effect, but, choosing Music servers and then waiting 15 minutes before clicking MinimServer brings up the listings on the first try, in fact I can get all the way to choosing a song without the "no media" showing up. Restarting the app and choosing MinimServer immediately brings back the old problem.

Definitely on to something here Smile
(01-04-2016 19:50)Wotan1a Wrote: [ -> ]OK, disabling IGMP snooping had no effect, but, choosing Music servers and then waiting 15 minutes before clicking MinimServer brings up the listings on the first try, in fact I can get all the way to choosing a song without the "no media" showing up. Restarting the app and choosing MinimServer immediately brings back the old problem.

Definitely on to something here Smile

OK, so this is related to UPnP discovery. It seems that your network has a multicast issue that is preventing UPnP M-SEARCH queries sent by the HEOS app from being delivered to MinimServer (or possibly preventing M-SEARCH responses sent by MinimServer from being delivered to the HEOS app). MinimServer sends out a UPnP "alive" message every 10-15 minutes and it seems this is reaching the HEOS app and enabling the HEOS app to discover MinimServer successfully.

You aren't getting the problem with the Synology media server because it "floods" the network with very frequent UPnP "alive" messages.

Are you running the Denon app and the HEOS app on the same iPad?

How are the HEOS and the Denon AVR connected to your network?
Yes, the Denon app and the HEOS app are on the same iOS devices. As a test, I just tried the Denon app, which bypasses HEOS and goes straight to the AVR, and it went through no problem.

Then, I immediately used the HEOS app controlling the HEOS link connected to the same AVR going to the same MinimServer (without the 15 min wait) and I got "no media".

It truly is a head scratcher, and yes, Synology media server worked like a charm in both cases.

My iOS devices go through an airport extreme base station that acts as a bridge to my Ethernet network. My HEOS amp, HEOS link and Denon AVR are all connected by cat5e Ethernet to one Netgear GigE switch while my NAS, airport station and PC's are connected to another. Both switches are interconnected by cat5e cable.
(01-04-2016 21:28)Wotan1a Wrote: [ -> ]Yes, the Denon app and the HEOS app are on the same iOS devices. As a test, I just tried the Denon app, which bypasses HEOS and goes straight to the AVR, and it went through no problem.

Then, I immediately used the HEOS app controlling the HEOS link connected to the same AVR going to the same MinimServer (without the 15 min wait) and I got "no media".

It truly is a head scratcher, and yes, Synology media server worked like a charm in both cases.

My iOS devices go through an airport extreme base station that acts as a bridge to my Ethernet network. My HEOS amp, HEOS link and Denon AVR are all connected by cat5e Ethernet to one Netgear GigE switch while my NAS, airport station and PC's are connected to another. Both switches are interconnected by cat5e cable.

Perhaps Denon are correct and there is some DLNA-related issue with the response that MinimServer is sending to the M-SEARCH request. This issue might not apply to the "alive" message that MinimServer sends out after 15 minutes.

Would you be willing to run a test scenario and capture a trace log that I can analyse? This would enable me to find out whether MinimServer is receiving an M-SEARCH request from the HEOS app and responding to it. If you are willing to do this, I will send you a PM with detailed instructions (you will need to enable forum PMs for this).
Let's do it.
(01-04-2016 23:41)Wotan1a Wrote: [ -> ]Let's do it.

Please enable forum PMs so that I can send you the instructions.
Should be good to go
Simon,

The private messages are enabled.

On another note, I sent your idea that it may be M-SEARCH based to Denon support through my supplier and I got this as a response.

"If there would be something different, then it almost certainly NOT something to do with M-SEARCH. It might, however, be something to do with the UPNP ContentDirectory:Search function"

No idea what it means but maybe it says something to you?
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