[VMConAWS] VMRC Console not working after SDDC upgrade
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[VMConAWS] VMRC Console not working after SDDC upgrade


Article ID: 313645


Updated On:


VMware Cloud on AWS


To identify the cause and fix the VMRC issue so that the users can use VMRC for opening VM remote consoles.


Unable to launch VMware Remote Console (VMRC) from the vCenter
Error: "unable to connect to the mks a specified parameter was not correct: tickettype"



The error is due to an outdated VMRC version installed.

Post upgrade from vSphere 7(ESXi/VCenter) to version 8.0 or later the VMRC console throws error.

  • In the VMRC logs, located at %TEMP%\vmware-%USERNAME%\ for Windows OS and /tmp/vmware-$use/ for Linux OS, you see entries similar to

2023-08-31T14:33:14.966+02:00| vmrc| I125: Log for VMware Remote Console pid=47624 version=10.0.4 build=build-11818843 option=Release

2023-08-31T14:33:14.987+02:00| vmrc| I125: VMware Remote Console

2023-08-31T14:33:28.894+02:00| vmrc| I125: cui::VMTicketingVIM::AcquireTicket

2023-08-31T14:33:28.894+02:00| vmrc| I125: cui::VMTicketingVIM::AcquireTicket - AUTO_QUEUING - can acquire ticket now, acquiring

2023-08-31T14:33:28.894+02:00| vmrc| I125: cui::VMTicketingVIM::DoAcquireTicket

2023-08-31T14:33:28.894+02:00| vmrc| I125: cui::VMTicketingVIM::DoAcquireTicket - issuing ticket acquisition request

2023-08-31T14:33:28.901+02:00| vmrc| I125: cui::VMBindingUnityMgr::OnGuestCanRunUnityChanged: The guest is a supported version of Windows, checking Tools status. Version status: 4, running status: 0

2023-08-31T14:33:28.901+02:00| vmrc| I125: cui::VMBindingUnityMgr::OnGuestCanRunUnityChanged: Tools status is OUTDATED

2023-08-31T14:33:28.920+02:00| vmrc| W115: cui::MKS::OnAcquireAbort (7A72020): A specified parameter was not correct: ticketType

2023-08-31T14:33:28.920+02:00| vmrc| I125: cui::MKS::OnSetAttachError (7A72020): -1

2023-08-31T14:33:28.921+02:00| vmrc| I125: DlgUI: Unable to connect to the MKS: A specified parameter was not correct: ticketType.

2023-08-31T14:33:28.961+02:00| vmrc| I125: VMMgr: Finished opening VM at /vm/#_4BA8720_vm-242818/ from vcenter.sddc-x-x-x-x.vmwarevmc.com:vm-242818




To resolve the VMRC error, upgrade the VMRC plugin to latest. Refer KB2091284 for steps to install latest VMRC plugin.

Additional Information


Affects the users productivity when trying to access VMRC consoles of multiples VMs.