See VMware 51518 Production Support for VMware Horizon 7.4, 7.3.2, and 7.2 with Win 10 1709 Semi-Annual Channel (SAC) Guest OS; To verify installation of the URL Content Redirection feature, check for the presence of C: Program Files VMware VMware View Agent bin UrlRedirection. There’s also a new IE add-on. Make sure that the View Agent is installed and that the firewall ports are open (4172, 32111, 443). Reboot machine or check service 'View Agent Connect' through RDP (User Portal) if possible. Unable to Connect to Desktop. Vmware Horizon View Protocol Failure - trustfasr This document discusses the use cases for the different types of graphics acceleration available for View virtual desktops in VMware Horizon 7. In addition, the document provides information on how to implement and troubleshoot each graphics technology. So two weeks ago I had a nice little post about talking to Horizon View using PowerCLI. I also promised to be digging a bit more into PowerCLI by grabbing the script posted on the VMware blog and editing it a little to my taste. It’s a very useful script they have on there but still I prefer to know what might have caused the issues.

Recently I went through the process of upgrading a VMware Horizon 6.1.1 VDI environment to 7.3.1 which was just released, and apart from some small teething issues with licensing during the upgrade due to a slight oversight in the VMware documentation everything else appeared to go smoothly.

As this environment uses View Composer Linked-Clones for non-persistent desktop pools part of the upgrade involves installing the new Horizon 7.3.1 agent onto the gold master VM template for each desktop pool then performing a recompose of the VMs in those pools.This is where I ran into an issue.

After upgrading the agent and performing a recompose operation on the VMs within each desktop pool they then displayed a Protocol failure” status within Horizon Administrator although I could still login to them as normal through the Horizon Client.

On doing a bit of research it appears this error can be generated if the firewall ports for a particular display protocol aren’t opened between the Horizon guest VM agent and Horizon Connection servers – in the case of Horizon this can be the Remote Desktop Protocol or PCoIP (PC over Internet Protocol) depending on how you have configured your desktops. In my case PCoIP was being used and all required ports between the guest VM agent and Horizon Connection servers were opened.

Verifying that everything within the environment was how it should be I then turned my attention back to the Horizon agent on the gold master VM template. Thinking that perhaps the upgrade from 6.1.1 to 7.3.1 had affected something I decided to completely uninstall the agent, reboot and install 7.3.1 again from fresh then recompose the VMs in desktop pools from the new snapshot.

Vmware Horizon View Protocol Failure Recovery

This time after the VMs had passed their customizing stage and I was then presented with the “Available” status as normal. Success!

So with that here are some takeaways from this after doing some extensive reading.

If you have VMs displaying a “Protocol failure” status within Horizon Administrator do one or more of the following;

Vmware Horizon View Client

• Verify the required TCP ports are opened on the guest VMs with the Horizon Agent installed – a list of these can be found here
• Verify the Horizon Agent services are running on the guest VMs – a list of these can be found here
• Check for a “ghosted” network adapter on the gold master template VM and remove it – more info can be found here
• Uninstall the previous version of the Horizon Agent first if upgrading to a newer version.

Vmware Horizon View Protocol Failure Rate

Introduction to VMware Blast Extreme

Display communication protocols provide end users with a graphical interface to a remote desktop or published application. Blast Extreme is a display protocol built by VMware to deliver an immersive, feature-rich experience for end users across devices, locations, media, and network connections. Blast Extreme is included with VMware Horizon®, the latest generation of VMware desktop virtualization and remote application-delivery software.

This guide provides a technical description of the Blast Extreme display protocol, including its benefits, limitations, and deployment options, for administrators who are considering using Blast Extreme in their organization today.

Vmware Horizon View Protocol Failure Rate

This guide is intended for IT administrators and evaluators who are familiar with VMware Horizon and VMware vSphere®. Readers should also have a solid understanding of desktop and application virtualization, as well as a good working knowledge of networking and supporting infrastructure, covering topics such as Active Directory, Group Policy, and supporting technologies.