A connection to a peer HMC (indicated in the location code) has been lost.

1. Perform the following from the HMC reporting the connection error:
   1. In the navigation area, click HMC Management.

   2. In the right hand pane, click View Network Topology.

   3. Is the peer HMC with the missing connection present in the topology?
      • No: Continue with the next step.
      • Yes: The problem was temporary and has resolved itself. This ends the procedure.

2. Verify that the peer HMC with the missing connection is powered on and that its ethernet connections are secure and functioning. Does the problem persist?
   • No: This ends the procedure.
   • Yes: Continue with the next step.

3. Is either the HMC that reported the problem or the peer HMC with the missing connection reporting a hardware error with a network adapter?
   • No: Continue with the next step.
   • Yes: Service this network adapter error. This ends the procedure.

4. Have the customer verify that their network is operating properly. If the problem still persists, contact your next level of support.

This ends the procedure.