OpenSprinkler › Forums › OpenSprinkler Unified Firmware › Announcing OpenSprinkler (not OSPi!) Firmware 2.1.1 › Reply To: Announcing OpenSprinkler (not OSPi!) Firmware 2.1.1 December 9, 2014 at 5:36 pm #34938 RayKeymaster @sgruby: yes, this firmware should have fixed that issue. To summarize, that issue was caused due to RAM over-usage. Firmware 2.1.1 considerably reduced the RAM usage. I would definitely recommend you to upgrade to 2.1.1.