Check TCP connections

1. Open Devices → Configure → TCP ports.

2. Click + TCP port.

3. Enter the TCP port, for example 22, 443 or 3389.

4. Enter a Label if needed.

5. Adjust the Check rules if needed.

6. Click Save all.

The check uses the device address and confirms whether a TCP connection can be established. It does not check a complete login or application workflow.

Under Add multiple ports at once, you can separate ports with commas, spaces or line breaks, for example 22, 443, 3389. Add ports adds the rows; Save all applies them. Duplicate port numbers are skipped during this bulk addition. Integer port numbers from 1 to 65.535 are allowed. Each device supports a maximum of 500 simple checks.

A different port number starts a new measurement series. Changes to the label or check rules retain the history.