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Access Points are not forming backup tunnel in HA pair

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TitleAccess Points are not forming backup tunnel in HA pair
  • Some APs are not forming backup tunnel in HA pair
  • WLAN services fail to sync
  • IdentiFi Wireless
  • V2110
  • High Availability (HA) / Failover 
  • Firmware 9.21.x, 10.x
  • VMware
The tunnel between AP and secondary controller may not establish if the secondary controller does not meet the AP capacity of the primary controller. This may be due to a misconfiguration of the VMware CPU and RAM settings which determine the size (small / medium / large) of an elastic controller. Synchronization between controllers may also fail in this scenario.
Make sure both controllers are configured as the same size (small / medium / large).
Additional notes
For information about installation size and requirements of a V2110 please refer to article What are the host resource requirements for each tier of an elastic controller



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