Hi guys back again with an update.
Sky contract renewed, and they sent me a new router.
Installed and connected to Sonos and B2 all OK, Sonos found router and done the work for speakers on it's network , all I had to do was re connect Move and Roam as they are wifi only speakers.
All playing fine via sonos using B2 as music library, including Roam.
Tried a few days later using B2 web UI and selecting a sonos speaker and the playing All in group BUT not the Roam left that offline. Seemed to play OK without any break ups.
So it seems that original setup could have been causing break ups.
BUT as per original 2nd issue, when I switch on Roam I lose most if not all of other sonos speakers and only see Roam or Roam plus 1 other speaker, rest are gone. If I switch Roam off then close UI and open again thenI get speakers all back .
I tried using UI forget sonos and then re scan again no change.
Paul you said Martin was going to see if ther was any issues re Roam, any update.
I am running latest software.
I am happy to have found that new router seems to have fixed break up issues I was having.
But I now have to leave Roam offline to use B2 and Web UI.
Or it's back to using B2 as a sonos library only as this works when Roam is on.
Similar situation as last time Sonos can play to ALL speakers, B2 can only play with Roam off.
Note Move and Roam are both WiFi speakers, B2 finds Move as well as other speakers, so why not Roam.
Regards
PK