MinimWatch listening on the wrong adapter?

[Milraine]

Hi
Yes the NAS address is right. So I guess its a multicast issue. I've looked at the section you link to and made sure IGMP snooping is disabled (it already was).
Its a BT home hub. Its connected by ethernet to an airport extreme base-station which broadcasts wifi for the house. The only device accessing the homehub's own wifi is the television. This uses the 2.4GHZ band. 5GHZ is disabled. All other devices in the house access the wifi through the airport extreme base-station. This broadcasts on both 5GHZ and 2.4GHZ. I think devices just choose the band they prefer. All other devices on the network work fine. Thanks for your help this is really frustrating.