Pressing 'start' to find match but not working?

Same all game modes lock I have gotten a early access code from streamer have twitch and PlayStation connected to ea still lock out 

Yup same here

Signed into another account on my Xbox, then switched to my original account. Ran the game again and now it's match making

Must of been fluke ive just tried that and it didnt work 

Yeah not even sure what happened but it's working now

Had the same issue earlier in the day. 
force closing the game and restarting it. Did it for me 

This was happening to me since early access to which I only played Breakthrough Initiation, but now that I'm level 15 and can't I have finally figured out a solution. I don't know why this worked, and it was a last resort type situation.

My Solution:
Switch Xbox Accounts.
Link Fresh Xbox Account with a New EA Account.
Launch Game with Fresh Account.
Check to see if a Match Loads with Fresh Account.

 I only have my own account on my xbox, so I don't know if having a preexisting account will do anything, or if you would have to add or create a new account. I happened to already have a spare account that I use for family and friends that I never added to my X. 

Hope this helps someone.

It doesn't fix it and many of us have this issue. I think it's more frustrating I've reported this a couple days ago and EA doesn't look into it or respond. 

It doesn't. I've tried

Come on EA!!! lots of issues with us sitting in lobby unable to start a match. Feel like the forums is just ignored