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ERROR#703: Network port test unavailable

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This article contains troubleshooting information

ERROR#703: Network port test unavailable

Source-Connect | Version 4 | All Operating Systems

Description

When users try to start a session in Source-Connect 4, they receive an error message saying that the port test is unavailable.

Reason

The port test has failed behind a symmetrical and/or CGNAT and/or a corporate firewall. The application will still try to prefer this port. 

Actions

Follow the instructions for firewall / router configuration. 

If an Antivirus may be blocking the port, make sure to disable it or check the rules.

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