Cleared cache memory, cleared data, uninstalled and installed multiple times, yet ap crashes 98% of the time. Now stuck with x12 5 ton units we cant control until we spend a bunch more $ to wire in hard controls. Would give 5 stars, love the units but since we went all wifi we cant control them. If your sorry and working on it then mail 12 hard controls as that would make us feel a lot better, once it warms up were going to have to cut the systems off as we can't change settings from heat.