UPnP disconnects

Oops, just realised that that Ansuz Ethernet Switch is in fact a modded D-Link DGS-108 - an unmanaged switch, but has IGMP Snooping that apparently can’t be turned off.

I’d return that switch and put the Cisco back in :neutral_face:

Ansuz Switch;

D-Link DGS-108 (modded pic);