Posted on 07 September 16 at 16:30Since Forza Horizon has joined the Xbox One Backwards Compatibility list the servers have been really unreliable. The 1000 club still works although that can be a little hit & miss, however one of the achievements that is found in the Rally Expansion currently cannot be unlocked. The achievement in question is Rally Rivals, and this is because the servers for whatever reason are unable to connect. If you try and access the rivals section one of three things will happen:1) A notification saying this feature has currently been disabled and to check ForzaMotorsport.net will appear.2) A different notification saying that the servers are currently unavailable will appear.3) You'll actually be able to get into the Rivals section but it will constantly search before coming up with an error.If anyone finds a way to get around these issues somehow or manages to connect to the Rivals section and unlock the achievement could they please post here for others to see. At the time of writing the last time this achievement was unlocked by someone on TrueAchievements was September 2nd, so hopefully this issue gets resolved at some point in the not too distant future.