Error: Unable To Connect to SSH Tunnel

Issue

While connecting a database to Fivetran using an SSH tunnel, the following error appears:

Unable to connect to SSH tunnel. Connection error: connect timed out

Environment

Database connectors using the SSH tunnel connection method.

Resolution

To resolve this issue, do the following:

1. Ensure your tunnel server's SSH port is accessible from all applicable Fivetran IP addresses.
2. In Fivetran, go to your database connector page.
3. Select the Setup tab.
4. Click Edit connection details.
5. Check that the information in the SSH Host and SSH Port fields is correct.
6. If you must update either field, click Save & Test.

NOTE: If Fivetran provides your SSH tunnel, contact our support team.

Cause

This issue occurs when the client is unable to establish a connection to the server within the time-out period. This may happen when the server doesn't respond to the client, or the connection is blocked.