We have a specific customer who all of the sudden lost their authorization to our app and they are unable to connect it again. The user is able to connect to other apps (including a second app we have for testing) but not our production app. They receive the following error: "Could not link App to Facebook, You may not be connected to network or we could not establish a connection with our server. Check your connection and try again later". See attached screenshot The error occurs on the facebook.com after they select the Facebook pages they manage and prior to redirecting to the callback page (They don't get to see "connected to App" page). Other users do not see this error when connecting to the same app. We have tried waiting for several days and it hasn't resolved itself. Any help would be appreciated