Error: Websocket Connection Blocked

Issue

Setup tests fail with either of the following errors:

• Websocket connection blocked: A blocked connection can be caused by AdBlocker browser extensions, Antivirus/Firewall software, Proxy/VPN connections, or the Hybrid Deployment Agent not being active.
• Encountered an exception due to response code 1000 and message org.apache.http.NoHttpResponseException: xxx.looker.com:443 failed to respond.

Environment

Connector: Looker

Resolution

To resolve this issue, do the following:

1. In Fivetran, go to your Looker connector page.
2. Select the Setup tab.
3. Click Edit connection details.
4. Ensure the information provided in the Subdomain field is correct. See step 1 of our Looker setup guide for more information.
   • If you must update the Subdomain value, click Save & Test.
   • If the Subdomain value is correct, contact our support team.

Cause

This issue occurs when you provide an incorrect Looker subdomain while setting up your connector.