Error -21355 Appears When Trying to Scan Across a Network on macOS

Article ID: ART176065 | Date published: 01/03/2020 | Date last updated: 01/03/2020
 

Description

This error provides information on what can be done to resolve a -21355 error that may be experienced when scanning across a network on macOS.

 

Solution

If you experience the following error when scanning across a network on macOS:

Failed to open a connection to the device (-21355)

Disabling IPv6 may resolve this issue.

Depending on your model, this will be found under LAN settings --> Common settings --> TCP/IP settings --> IPv6

OR

Device settings --> LAN settings --> Wi-Fi --> Manual setup --> TCP/IP settings --> IPv6


OR

Device settings --> LAN settings --> Wi-Fi --> Settings --> Advanced --> TCP/IP settings --> IPv6

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