I just bought sonos play:5 and bridge.
I downloaded the latest version 3.7 from sonos.com.
The controller easy find the bridge and play:5, and then it tells me that my sonos components needs a update, and I press update and it quickly shows:
"There was a problem searching for updates (1101)....
Controll you internet connection or try again later..."
It has done this since saturday
My internet connection works perfectly!
Hope u can help!