Clash-of-clans – Clash of clans simultaneous upgrades

If you have already used your one sync, then you are kind of stuck. When switching devices, they allow you only one sync. This is for security reasons, but it kind of acts as an inconvenience here. There is almost no way to get your account synced after that. I would recommend contacting Supercell if you are desperate.

Clash of Clans syncs almost in real time, but it doesn't tell you that you have disconnected from the game the moment you disconnect from the game. Starting at the disconnection time, Clash of Clans will attempt to reconnect. If it doesn't connect in a specific period of time, it will give you the error message. If you exit the game before re-connection, it wont save the changes. You may disconnect from Clash of Clans but still have a stable connection to your Wi-Fi or data. Before exiting the game, I always find a multiplayer match (because that requires a connection to Clash of Clans) then exit the game to ensure that my changes have been saved