I was watching tv on my blak now tv box and it just turned off half way through my programme and i could not get it to turn on again. I have then tried my white box and it is doing the same thing. I have tried it on 2 diferent tvs and with different hdmi cables. can any body help please
NOW TV have identified an issue causing this and have posted a message about it here
I'd suggest going to that post and clicking Topic Options>Subscribe (you need to be signed in to do this) and then you should get an email when there is an update.
The reason why you can't open that link, is because this was a NowTV service status that happened back in October 2016 and if the link is now closed it is due to that NowTV have resolved what ever issue they had with their service back in October last year.
If you own a white nowtv box and it keeps crashing, then maybe have a read of this linked thread.