RIM node registration or connection fails: cannot reach host

This article describes cannot reach host error when registering or re-register a RIM node.

Cannot reach the following remote host when distributing certificates: http://nodename:4444/setup/certificateDistribution
 


What is the possible cause?

Environment:

• Qlik Sense Enterprise February 2019

If the TCP port 4444 is not blocked in the environment between the Central and Rim nodes, the Node registration error Cannot reach the following remote host when distributing certificates will also pop up when re-register the RIM node if uninstall/reinstall of the Qlik Sense server was not performed using a local Administrator account on the Rim node.

To be able to re-register a deleted RIM node, it is necessary to uninstall the Qlik Sense on RIM node and reinstall it before the node re-registration.

Remove Qlik Sense certificates and data folders option should be selected when uninstall the Qlik Sense. 

Refer Qlik Sense help as the reference. 

To note:

• The Qlik Sense service account need to be a member of the Administrator group on the RIM node when the re-distribution of the certificate is perform. Certificate distribution to Rim nodes is considered a deployment (installation) task. As such, administrative privileges are needed.
• If the service account is found without administrative local rights (added to the local administrators group on the server), then add it, restart the services, and try again.
• If this cannot be achieved in the environment, please review the information under Changing the user account to run Qlik Sense services.

If the reinstall of the RIM node doesn't solve the issue, it could be an issue from the Central node being corrupted.
In that case the solution would be to repair it:

Control Panel --> Programs and Features --> click "Change" on Qlik Sense and then Repair