0xxxxx connection error codes
If the HMC displays a state of No Connection in the managed system state column, it means that the HMC is unable to establish a connection to the managed system.
There are several reasons why the HMC fails to establish connection, and often it is due to network issues. It is important to first check the network setting on both the HMC and the managed system. However, there are times a no connection state is caused by another problem unrelated to network settings.