Why does TAT100 not send data?
1. Make sure Tracking settings are configured correctly, according to these instructions2. Check if your APN , Domain and Port entered correctly and GPRS data is Enabled.
3. In some rare cases it helps to clear the device's memory:
It could be done remotely using SMS/GPRS command sdformat.
More info about the commands here.
|NOTE! Please do not change Open Link Timeout in TAT100 configuration
GPRS -> Record Settings -> Open Link Timeout -> Should be set to  / Response Timeout -> Should be set to  / Network Ping Timout -> Should be set to 
|NOTE! Scheduler days has to be selected to enable data sending. More info here.|