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"Unable to connect to the management gateway server..." after controller hardware upgrade

Last Updated:

Applies to

  • ONTAP 9.1
  • Controller hardware upgrade from FAS3220 to FAS2552


  • Following a controller hardware upgrade the CLI is not functioning on one controller.
  • MGWD is also restarting frequently with the following messages on the console:
Unable to connect to the management gateway server...
The management gateway server restarted. Waiting to see if the connection can be reestablished


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