Search for: Log In Register OpenSprinkler › Forums › OpenSprinkler Unified Firmware › Help ! Black browser screen at start up. This topic has 6 replies, 5 voices, and was last updated 5 years, 3 months ago by jnissen. Viewing 7 posts - 1 through 7 (of 7 total) Author Posts June 6, 2016 at 11:46 am #42839 pbecchiParticipant When I connect to OpenSprinkler, just after the password selection , I get a black screen and home page never appears! Going to advanced developer mode, ( I use chrome) I got an error message: Uncaught TypeError: Cannot read property ‘wtkey’ of undefined Can anybody help me…. I really don’t know what to do! Thanks Paolo June 6, 2016 at 2:28 pm #42847 SamerKeymaster Can you reset your device to factory default, if you have a backup of your configuration? It might be corrupted data? June 7, 2016 at 4:11 pm #42885 pbecchiParticipant Thank’s! I have reset to factory and now the units work again…..! It was probably corrupted data, I hope it doesn’t append very often! Paolo June 11, 2016 at 12:38 pm #42945 pbecchiParticipant @Samer sorry Samer, but after a couple of day of normal work…..again the black screen with the same message. I would like to understand what can be causing this, I don’t want to keep resetting to factory every few days! I have 4 OS unit running now and only one give me this problem, apparently all have similar set up! This one is the one with the worst ethernet connection , but normally after few trial works! I really would like to understand! Paolo June 20, 2016 at 10:04 am #43061 RayKeymaster Hi Paolo, could you submit a support ticket at http://opensprinkler.com/support so that we can provide technical support to you regarding this issue? Thanks. October 20, 2017 at 9:03 am #48077 os061217Participant After recently adding the weather key, I started having the exact same problem. Did you determine the cause of this issue? October 20, 2017 at 11:43 pm #48084 jnissenParticipant Which hardware platform are you on? Author Posts Viewing 7 posts - 1 through 7 (of 7 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In OpenSprinkler › Forums › OpenSprinkler Unified Firmware › Help ! Black browser screen at start up.