Lost access to my gear/can't access multiplayer

For the last several days I have lost all my armor, weapons, emblems, etc. every time I try to access it, I get a message that says “Unable to retrieve data. Please try again later.” I also can’t play any multiplayer games online. I get a message that says “There was an issue with the Halo 5: Guardians servers. Please try again.” I’ve checked and rechecked everything on my end multiple times. I have a connection and theres nothing that explains it on my end. I read up online and supposedly this was a common event with the new release but it says it’s been resolved. It has not been resolved for me.