Help with custom HTTP

[homeautomation]

Hi, I can't get custom url to work. I always get connectgion refused if querystring is added to the url.

This url are giving below error
http://192.168.2.15:6789/rest.php?ref=2875&value=%CO2%

CustomHTTPDest::process
Calling HTTP: [http://192.168.2.15:6789/rest.php?ref=2875&value=673]]
[Error Code: -1 = connection refused
Failed
Response Code: -1]

But if I copy and paste the "http://192.168.2.15:6789/rest.php?ref=2875&value=673" to browser it works fine.

I have tried to add an url without querystring and then the logs display the result.

Do my own rest.php respond anything more than ex. the text OK

[admin]

can you check if both, your computer and the device are on the same network. If i remembe correctly - there was a case when somebody had 5 ghz and 2.4 ghz networks, and the vAir monitor only connects to the 2.4 ghz, but his other stuff were running in the 5 ghz

also try with the ping command from the "Send Command" input field
ping "192.168.2.15","6789"

i believe you should get again -1, but just in case
you can also check what ip details the device got with
ipconfig