Per the VMware View Ports and Network Connectivity documentation, Horizon View Security Servers or the exposed load balancer IP address will require the following ports to be open from the front-end firewall:

The VMware Ports and Protocols tool compiles a complete list of all ports and protocols used by VMware products and versions. When deploying multiple VMware products, you no longer have to hunt for ports data for different products in different places. Horizon 7 uses TCP and UDP ports for network access between its components. During installation, Horizon 7 can optionally configure Windows firewall rules to open the ports that are used by default. If you change the default ports after installation, you must manually reconfigure Windows firewall rules to allow access on the updated ports. The VMware Horizon 7 Network Ports document lists port requirements for connectivity between the various components and servers in a Horizon 7 deployment. Included are detailed Horizon 7 Network Ports diagrams. Links from the thumbnail diagrams take you to larger PDF layouts of the diagrams that are high resolution and ready for printing as What is VMware Horizon? VMware Horizon® 7 is a solution that simplifies the management and delivery of virtual desktops and apps on-premises, in the cloud, or in a hybrid or multi-cloud configuration through a single platform to end-users. It is best to just look at the VMware official documentation for the particular version of View you are using. It is certainly true that if you block any of the ports needed for PCoIP (in a firewall or proxy etc.) you will get a black screen. VMware View 4.5 VMware View Installation Guide : Installing View Connection Server : Sizing Windows Server Settings to Support Your Deployment : Ephemeral Ports View Manager uses ephemeral ports to establish TCP connections between View Connection Server and the View desktops that it administers.

Apr 16, 2013

VMware View | OpenVPN

Confirming that correct TCP/IP ports are open on a VMware

Jun 08, 2020