Some additional information. For the above investigation I used a value of about 20 minutes (1201 seconds) for the CHECK_WEATHER_TIMEOUT parameter. With the OpenSprinkler firmware update to 2.1.9 (9) I’m using a value of about 60 minutes (3601 seconds) polling the weather service every hour.
With firmware version 2.1.9 (9) the issue with the “Empty Response” occurs once twice sometimes three times a day. Please see the attached system status report. Looking at the Fritz!Box or Fritz!Repeater status reports there are no outages or other problems reported for the given weather service request times.
