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CIFS Share Inaccessibility Due to Port 445 Blockage

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Applies to

  • ONTAP 9
  • CIFS Shares

Issue

Clients experience error "Check the spelling of the name. Otherwise, there might be a problem with your network. To try to identify and resolve network problems, click Diagnose" when attempting to access a CIFS share.

Screenshot 2025-09-04 165005.png

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