Data Sender on TRB145 not working

I have setup a data sender to my API for modbus data. Somehow it does not send a request to my server, also can’t find anything in the logs in the troubleshoot file.

Data Source: Modbus Data
Protocol: http(s)
Json format: default
Segment count: 1
Send as object: On
Host/url: steht zum Verkauf - Sedo GmbH
Period: 20
Data filtering: All data
Custom header: Content-Type: application/json

In the Modbus configuration I have created, tested and enabled a request.

My server just checks for the incoming data/connection. In the logs I can not find any connection attempts.

public function req($id)
        $this->autoRender = false;
        $jsonData = $this->request->input('json_decode');
        file_put_contents('request.txt', print_r($jsonData, true));
        return $this->response->withType('application/json')->withStringBody($jsonData);


PING ( 56 data bytes
64 bytes from [IP]: seq=0 ttl=50 time=24.421 ms
64 bytes from [IP]: seq=1 ttl=50 time=24.140 ms
64 bytes from [IP]: seq=2 ttl=50 time=31.992 ms
64 bytes from [IP]: seq=3 ttl=50 time=40.700 ms
64 bytes from [IP]: seq=4 ttl=50 time=27.480 ms

--- ping statistics ---
5 packets transmitted, 5 packets received, 0% packet loss
round-trip min/avg/max = 24.140/29.746/40.700 ms

Rebooted multiple times. No difference.

What can I do next? Where can I find the data to server logs on the Teltonika TRB145?

Further investigation of the server logs, it does send requests now after changing and rebooting the configuration.

Problem is, it does not like the https?

POST /api/data/1 HTTP/1.1 redirect to 301