VDI Show Unknown State Intermittently on VMware Horizon 7 version 7.4.x

Problem: VDI machine’s view desktops is shown unknown or provisioned missing state on Horizon View administrators of VMware Horizon 7 version 7.4.x.

This problem caused by missing VcCache updates due to socket timeout not happeningĀ  then results in incorrect status in View Administrator page of VMware Horizon 7 version 7.4.x.


Restart of the connection server services will bring the VM’s back to correct status.


Fix is available in Horizon 7.5 version or contact VMware support to get hot patch with VMware Horizon 7.4 version.


VMware Knowledge Base: VDI intermittently shown as unknown (missing) state on Horizon admin page in Horizon 7.4 version (56903)

Published by Thomas Apel

, a dynamic and self-motivated information technology architect, with a thorough knowledge of all facets pertaining to system and network infrastructure design, implementation and administration. I enjoy the technical writing process and answering readers' comments included.