Rugby
February 21, 2017, 8:28pm
2
Joe_Hempen:
Managed Switch
Managed Switches can cause issues with settings. Roon uses Multicast. In general disable IGMP snooping on the switches and any “UPnP” settings on the access points, switches, and router.
See some of these links, or Search the Forums for Managed Switches and read some of the issues and solutions.
(repeating my post from another thread) +1 on the flow control solution. My chain is Synology DS1515+ > wired ethernet 2 port bonded connection (two 1gig ports) > Netgear GS724Tv4 managed switch > wired ethernet > microRendu > Oppo HA-1. After 1.3 install couldn’t play anything over 24/96 or DSD64. Music would start, play clean for 3-5 seconds, then descend into garble, then “a file is loading slowly…”. Checked out several threads here and decided to look closely at the switch. There is a ‘Globa…
Multicast and Spanning Tree are the two reasons why I recommend that customers only use high-quality unmanaged switches on their networks. Layer 2 and 3 managed switches are great, but often times their defaults are not conducive to the way that a number of plug-and-play consumer products implement their communication. This isn’t a problem with Roon or Sonos or UPnP, but rather the fact that in a commercial environment the kind of “overly-chatty” traffic that these devices generate is rarely see…
The switch may indeed be the issue. Any chance you’re using Cisco managed switches (SG200 / SG300)?
This all seems very familiar to me as I beat my head against the wall with a UPnP server running on a QNAP that was simply invisible on the network. Turns out that the QNAP and the switch were getting into a fight regarding multicast packets and the switch was winning by simply dropping them.
Roon/RAAT uses multicast to find audio endpoints and I wonder if these packets are getting dropped in a…