I have an OpenSprinkler with HW version 2.3-DC. FW 2.1.9 and App Version 2.2.1. The programs work fine but I keep on loosing access to the website portal. I have to unplug the device and plug it back in, i.e. power cycle it. Then the web portal becomes available again. Do others experience this as well? Is there a solution to this problem?