I dont know what platform you're on or what youre running. If you're on PC, this might* help. If you're using addons, make sure you run minion every time before you login to the game, even before you login to Steam if you're going through Steam.
Addons or not, exit the game/Steam/etc.. Unplug your router for a few seconds. Plug it back in and let your internet reconnect. Load up the game and hopefully your problem is fixed.