Unable to update SolusIO Compute Resource(s): Failed to Update Nodes

Symptoms

• Unable to update SolusIO Compute Resource(s) with the below error at the page SolusIO > System Updates:
  

  SVM_ERROR: Complete with errors
  ...
  Failed to Update  Nodes

• While pinging the Management Node hostname (example.com) that has the IP 203.0.113.2 it occurred that actually, it is resolved via another IP address:
  

  # ping example.com
  PING example.com (203.0.113.3) 56(84) bytes of data.
  ...

Cause

Management Node IP misconfiguration.

Resolution

1. Log in to the affected CR via SSH.
2. Edit the configuration file /etc/solus/agent.json with any text editor, vi, for example:
   

   # vi /etc/solus/agent.json

3. Replace the api_host value with the correct IP 203.0.113.2:
   

   # cat /etc/solus/agent.json | grep "api_host"
   "api_host": "203.0.113.2",