OpenSprinkler › Forums › OpenSprinkler Unified Firmware › Invalid API key has been detected. › Reply To: Invalid API key has been detected. May 27, 2016 at 11:05 am #42648 dyewellParticipant Thanks for the posts. I had the same problem as a result of manually selecting location as well. Accepting the default location returned via search fixed the API key error for me as well.