Xbox user error

Thanks for the suggestion. Will look into this but Microsoft need to sort this out anyway. I really think this forum is the weakest aspect of MS support. Might as well talk to a wall.

To Adamski Alders, I had the same connection problem, wouldn't let me play online or co-op. Followed your advice and hey presto I'm online now. Good stuff

I may have a solution, may being the operative word. I have Sky Broadband complete with a safety feature called Sky Broadband shield which blocks Adult/18+ rated content between the hours of 5.30am and 9pm. Yesterday and right now the only time I have gotten
Halo 5 to work is after the watershed so after all of my "fixes" I think it maybe the broadband not the game.

Check your broadband for any Adult filters/Parental Controls and see if that may be causing it.

@Lenin - I've played other games since and all my online works fine, checked all of my connections, even turned it off and on again but nothing worked. Got bored sitting here trawling the internet looking for answers(the most common being "its Day 1 - problems
happen" - which isn't bloody helpful at all) so I'm now blowing people up on World of Tanks to try and cheer myself up. I would've played Titanfall but sadly had to delete it to install bloody Halo 5.

I'm getting this error message. Have submitted it via Twitter and i think they're pondering. I have played Titanfall to check and that works ok, as do other online functions.