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Remote console connection fails with the error: Unable to connect to the MKS (2150981)

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Symptoms

When attempting to connect to the remote console you see this error:

Unable to connect to the MKS: Could not connect to pipe \\. \pipe\vmware-authdpipe: The system cannot find the file specified.   


Cause

This issue occurs when:
  • Attempting to connect to the remote console from vCenter Server to a virtual machine.
  • When connecting to the remote console from different subnets through a firewall.

Resolution

To allow the VM Remote Console port-902 to vCenter and the ESXi hosts:

  1. If the user is in a different layer 3 subnet, check firewall settings:

    The connection is as follows:  User --> TCP/UDP 902 --> vCenter

  2. Click on the remote console of the virtual machine on a host.

    The connection is as follows: User redirect --> TCP/UDP 902 --> ESXi Host

Note:  If the host is added by DNS, it must have DNS resolution for both vCenter Server and the ESXi hosts.

See Also

Request a Product Feature

To request a new product feature or to provide feedback on a VMware product, please visit the Request a Product Feature page.

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