If "GSM error" appears in the display of your DoseCan and there is "No connection to DoseCan" in the log, then there is very little or no connection to the GSM network. This may be temporary due to work done at the telecom operator or high load on the GSM network. Or the DoseCan is in an area without GSM coverage
The first thing to do, is to try iand reboot DoseCan by turning it on and off, on the inside of the lid. If it does not help, we (DoseSystem) can try to solve the problem by connecting DoseCan to the best GSM provider in the area. Therefore, send the DoseCan number (4 character) to us and we will try to investigate and, if possible, correct the problem.