On Fri, 15 Jan 2016 21:36:15 +0100 Guido Falsi <madpilot at FreeBSD.org> wrote: GF> From your description it looks like a different issue. Looks like GF> some network issue, maybe some network device (switch or router) is GF> eating up certain multicasts? There is only one (rather simple, non-smart) switch invloved here, but I'll try to find out. cu Gerrit