When Node0 of an SRX chassis cluster deployed on Juniper Mist is replaced, the WAN edge may appear Offline in the Mist portal even though the replacement Node0 is operational and session on port 2200 is established from SRX Node0.

This can occur because Mist initially registers the SRX cluster using the device ID associated with Node0. After Node0 is replaced, the replacement device has a new device ID. However, the SRX may continue to maintain the existing outbound-SSH session to Mist using the previously registered device identity.

To allow Mist to register the replacement Node0 with its new device ID, the outbound-SSH connection must be deactivated and reactivated after the Node0 replacement.

> deactivate system services outbound-ssh

> commit

Wait for few minutes and then run activate command and commit the configuration.

> activate system services outbound-ssh

> commit