Not to infer that this is your problem, but the possibility exist that one of your rules could be causing something like an endless loop in the program, which if that were to consume too much of the processor time could result in the connection breaking. You mentioned in one of your post that it started when you reconnected sensors. Could it be that a particular sensor is constantly triggering something? Just a wild hunch! One way to trouble shoot might be to create a duplicate copy in RP of the account using another name. Then clear all your rules from this new account and then see if you can stay connected. Then add a few test rules and send them to see if you can stay connected. Just some suggestions.