Network Ports Required for VMware Horizon View to View Connection Server USB Redirection (Optional), can be incorporated in to the Blast Extreme connection. Login, authentication, and connection to the VMware Connection Server.Ĭlient Shared Drive redirection (CDR) and Multi-media redirection (MMR). The following ports are required for the VMware Horizon Agent when connecting directly to a View Connection Server. Network ports are blocked (Computer Firewall, Network Firewall)įor the VMware Horizon agent to function properly, ports must be accessible through your firewall, whether it’s the firewall on the VM guest, client computer, or network firewall. As of Horizon 2106 and later, you no longer need to re-install the Horizon Agent when performing a VMware Tools upgrade.įor more information on the agent installation order for VMware Horizon, please visit. When upgrading VMware Tools, it is recommended to re-install the Horizon agent in versions up to and including Horizon 8 2103. It is important to also consider this when upgrading the agents as well. Install the VMware App Volumes Agent (if needed).Install the VMware User Environment Manager Agent (if needed).Failing to do so can cause problems, including a blank screen screen. When deploying the VMware Horizon View agent, you are required to install the agent, along with VMware tools in a specific order. VMware Tools and Horizon Agent Installation Order Some of these will require you to do your own research and will only guide you, while other sections will include the full fix for the issue. Now that we have a list, let’s dive in to each of these individually. Blank Screen connecting to Physical PC running Horizon Agent.Video Settings (Video Memory (VRAM), Resolution, Number of Displays).Incorrectly configured Unified Access Gateway.XDR, EDR, and AV Platform causing momentary blank screen at logon.Network ports are blocked (Computer Firewall, Network Firewall).VMware Tools and Horizon Agent Installation Order.

Click on the item below to jump to that section of the post: There’s a number of different causes of a blank or black screen when connecting and establishing a VDI session to Horizon View. This troubleshooting guide applies to VMware Horizon 8, VMware Horizon 7, as well as earlier versions of VMware Horizon.

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