Enabling or Disabling the "Enable IQ Server" option in the Nexus UI -> IQ Server page can fail due to the following validation warning:
This appears to happen as the IQ password value is missing/not persisted on the configuration form.
- Via the Nexus UI -> IQ Server page, configure an IQ connection and save the changes.
- Whilst remaining on the page, disable –> save then reenable –> save the "Enable IQ Server" option and observe that you can successfully do so without editing any of the other the configuration.
- Now go away from the page to another part of the UI, then return to the IQ Server page and repeat step 2. This time notice that the saving will fail with a "An error occurred while saving the form" message in the UI and the above warning in the nexus.log.
Re-enter the IQ password and then save the changes.
Re-entering the IQ user password should be not be required when attempting to enable or disable IQ usage.