Can you check whether your devices are always being allocated the same IP address or whether there is some movement care of DHCP? You can either do this by logging into your router or by using FING.

A long time ago I did find some instability in the handling of multicast packets on my network despite setting all appropriate parameters in my Netgear Smart switch and making address reservations in the router. Although in theory I should not have needed to do so, I then set a permanent IP address for my MC200 and Roon ROCK (NUC) and have never had issues since.

So step 1, check what IP addresses are being allocated and whether they are changing at all. Step 2 use reserved addresses in your router DNS table. Step 3 set a permanent IP address for key devices. Only do this last step if are comfortable doing so and do keep a record of what addresses you have assigned.

Hope the above helps.

John

808v6, M60, MC200, HD621, Lumagen XE, 504, SB Touch, 563, 201, 204, 208, MPMAX 221, M80, Explorer, Explorer2.