I have OS 2.0 beta (the one with 1.* enclosure and 2.0 hardware) with firmware version 2.0.7 (the last version with the old style UI). My OS looses network connection at least once a week, so I’ve plugged it into home-automation controlled outlet, which is reset every night at midnight. This solution works fine with one caveat – once power for OS goes down, it sends some impulse to every station, triggering a split-second valve reaction. I can’t say valves are opening/closing at this very moment but something is going on and it sends a noticeable pressure surge to all water pipes in the house, quite loud and shaky. There is no pressure surge 5 minutes later when the OS outlet is powered back on.
I’m very reluctant to upgrade to newer firmware; I’ve heard it’s more stable network-wise but do you know if it has the same shutdown problem?