Unfortunately I cannot get into settings on the Stream as it boots and then I get the error.
I set the Stream up using Wi-fi before it cycled into the error. I then tried with Powerline, but just got the same error.
Apparently the 5 has issues with VoIP too i.e. network issues (protocol/filters??).
Anyway, my situation is also complicated as my Stream account was apparently cancelled on Thursday (it hadn't worked before then) when I renewed my Broadband contract.
I am still waiting for the hub to be switched as they needed to register the hub 3, and then reactivate Stream.
The engineer (Mikey) needs a special shout out as he hung around for an hour whilst accounts tried to establish what exactly was going on.
So fingers crossed as I await a call back from Customer Services (they said a 2-4 hour wait at 10am) to get the hubs switched on the system, and activate Stream again.
Thanks for the input. I'll post here when I get any further update.