Cannot connect to a management hub

Ensure that the management hub is supported by XClarity One (see Hardware and software requirements for XClarity Management Hub 2.0).

Check the event log for any network events, and resolve the issues, if any.

Ensure that the network hardware is functioning correctly for the connection path to the management hub.

Ensure that the correct switch and firewall ports are enabled for the management hub. For information about required ports, see Configuring the management hub network.

Ensure that the management hub has a valid network configuration by verifying that the IP address is valid for the network. You can also ping the management hub to test if it is visible on the network.

Ensure that the registration key that was generated by management hub is installed in XClarity One, and ensure that the registration key was generated by XClarity One is installed in management hub. If the registration key is not valid, generated and install a new key (see Connecting the management hub to XClarity One.

If the management hub encountered an error while attempting to install the registration key, contact Lenovo Support for assistance.

If the management hub’s server certificate is signed by an external certificate authority, ensure that the subject alternative names include the fully-qualified domain name (FQDN) or IP address of the management hub, and the subject name be set to the FQDN of the management hub.

Collect service data for the unresponsive management hub using the XClarity Management Hub 2.0 Service Support Center portal (see Management-hub service data)

Attempt to re-manage the hub from the XClarity One portal.