Roon crushes network availability of Matrix Audio Element M

[Vitali_Litvinov]

Roon Core Machine

Synology DS720+
In out SSD cache
10GB RAM
Intel J4125J
DSM 7.1.1

Networking Gear & Setup Details

Mikrotik RB4011iGS+RM
Ethernet
Static IP
55000 port forwarded
No VPN

Connected Audio Devices

Matrix Audio Element M
Samsung S22
MA Connect app or Roon

Number of Tracks in Library

15000 local tracks + Tidal

Description of Issue

When the Roon Core is active, listening to Tidal or local tracks, after couple of minutes the Element M goes offline.
If I use MA to connect, not Roon, it still goes offline time after time.

If I turn Roon core off, no problem.
I can use Tidal with MA Connect app.

I see, it is online, router statistics is active, but apps can’t see Element M
Kill app, open, see it online again for some time.

[UliR (Uli)]

@Vitali_Litvinov Did you set Auto Standby to “never” in the Roon device settings for the Element M?

[Vitali_Litvinov]

Yes it set to never

The device is on, it doesn’t go off
It falls only in apps
At the same time I see it online in the mikrotik winbox interfaces
It goes offline, when it’s playing music

If I kill roon core, I see it online as it should be

It disappear only when the roon core is active
Synology resources monitor shows 5-7 percent cpu usage and 20-30 % of ram

Nothing is overloaded

Just it goes offline in my roon app or MA connect app
I reopen it, element m is online

Behavior like this )

[UliR (Uli)]

That does not sound good. I am sorry I have no further ideas. Paging @support - can you help?

EDIT:
My Matrix Audio device (mini-i Pro 3) has a fixed IP, and WiFi is deactivated - did you try that?

[Vitali_Litvinov]

Also when it falls, it still online as airplay device

[UliR (Uli)]

OK - very strange. Firmware is up to date?

[Vitali_Litvinov]

Yes ) and static lan ip