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ExtremeCloud Appliance is not authenticating users or registering access points

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TitleExtremeCloud Appliance is not authenticating users or registering access points
Symptoms
  • ExtremeCloud Appliance is not authenticating users or registering access points
  • Synchronization fails between ExtremeCloud Appliance High Availability Pair
  • Invalid certificate errors are seen in logs
  • Access points with Secure-Tunnel (enabled by default) configured are not registering to the controller.
Environment
  • Version 4.26.01
  • Version 4.26.02
  • All Access Points
Cause
The root cause of XCA the symptoms noted above is an incorrect Network Time from NTP or set manually.  Continued NTP issues and invalid certificate problems can cause corruption in the authentication database and issues with the controller synchronization even after reboot and re-configuration.   
Resolution
  • Make sure that there is a valid NTP server configured on the ExtremeCloud Appliance and that is is reachable on the network. 
  • If there is no NTP server available, disabling NTP and configuring the network time manually can workaround this.  
Additional notes

Known instances of this problem occurring have been resolved by the following steps:

  1. Disable High Availability on both controllers. 
  2. Backup Primary
  3. Reset Primary to Factory settings
  4. Reset Secondary to Factory settings
  5. Restore Primary Controller configuration - this should re-establish correct time settings
  6. Establish HA
    • Config should sync over to the ‘fresh’ secondary accordingly

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