Account linked to the Xbox Live Gold can access realms and worlds. Xbox is set as Home and shows active Live ID account number. When other account/player uses same Xbox, they have no access to realms or worlds and told either to check internet connection or logon to XBL. Have power cycled, removed and added accounts, and talked had Microsoft refresh the account at their end but problem continues. This is not a problem with other programs or older Xbox One Edition of Minecraft.