New to Sonos and problems

I have just taken delivery of my first Play 5 and a Playbar. I am connected to my Belkin router by a Bridge.

The mail problem is that playing music from my iPhone 4 is fine for about a minute and then it cuts out. I have checked the wifi channel which is on 11 and sonos is on 1. I have powered down the router and each of the Sonos units in order to reset they system. But the problem remains.

I also regularly get "unable to add song to the queue" messages.

I also cannot seem to connect my ipad or my son's itouch. The app downloads and it seems to connect until I get to the "searching for sonos components" , where it just hangs for ever.

Unless there is a reliable fix, the regrettably I will have to box it all up and send it back - which is a shame , because the minute or so it does work it is great!