multiplayer and community greyed out

I bought halo 5 guardians and halo MCC pre owned last week and cant play multiplayer for both games… it says im offline but my connection is good and my other games work well online. whats the problem? thank you

Do you have the most recent updates for both games?

i dont know, where can i see this?

https://xbox.uservoice.com/forums/253802-home-settings/suggestions/6188930-manually-check-for-app-and-game-updates
This should help you out!