SYNC ERROR: EVERYTHING'S GOING WRONG.

Hey everyone for the last month or so I’ve been having sync problems with my Halo 5 it’s not just my Xbox live account it does it for everyone on my Xbox.

I have checked the connection and everything is fine, other games run perfectly I’ve seen this error posted a lot by others but I haven’t seen a fix can someone point me in the right direction?

Please help me I’m figuratively dying here.

I haven’t been able to play for the whole day. My profile won’t sync sets it back to level 1 and won’t let me play online. Any fixes??? Please. It happens most days to me

This is an MS/343 problem… it sucks until they fix it. Which of course you get no response from them. Xbox Live is showing on problems today so far.
Try calling xbox support: 1-8004699269