Random Session Disconnects due to Spanning Tree Configuration
Scenario PCoIP sessions experience random session disconnects of some or all clients. Re connection is not always possible straight away.   Cause A Spanning Tree Protocol (STP) re-calculation can cause random session disconnects. STP will cause the …
What PCoIP GPO settings in VMware Horizon View take effect immediately after the change is made?
Answer: There are currently 4 GPO settings which changes take effect immediately. These are available in Horizon View 5.2 and are listed below along with links to the individual GPO descriptions. In Horizon View 5.3 an additional GPO was added to this …
What is the DHCP request timeout on a PCoIP Zero Client or PCoIP Remote Workstation Card?
The PCoIP Zero Client and PCoIP Remote Workstation Card will attempt to get a DHCP lease 4 times after power on or after the network link comes up. When a PCoIP device is connected to a network with no DHCP server and the DHCP request time-out period …
How does competing traffic on the network affect PCoIP performance?
This article outlines how other types of network traffic may negatively impact PCoIP performance. Please refer to  Network session checklist for PCoIP protocol LAN and WAN deployments  for more details on network configuration. On most modern LAN's, …
Upgrading from firmware 3.4.x or earlier, a message displays indicating my USB devices failed authorization
Problem When upgrading PCoIP Zero Client firmware from 3.4.x, USB locally terminated devices work, but no redirected (bridged) USB devices work. When viewing attached devices in the Administrator Web Interface (AWI) only the mouse and keyboard show as …
What network switch or router queue size should be used?
Network device queues, also known as network buffer's, should be configured to accommodate 50ms to 100ms of PCoIP protocol traffic in total. This assumes that one network device (e.g. switch or router) is congested for a given network path. If the network …
How do I improve performance when dragging a window on the screen using firmware pre-4.1.0 and without a PCoIP Hardware Accelerator installed?
Problem While there are many factors that determine desktop performance - see  PCoIP TROUBLESHOOTING STEPS: VMware View Virtual desktop performance  - lower performance of window dragging may be observed in the following environment: VMware Horizon View …
Encryption and bandwidth metrics used for various setups PCoIP Devices and VMware Horizon View
Answer:   Encryption and Bandwidth Metrics   Tera1 Zero Client Tera2 Zero Client Windows View Client Host Card No View Security Server Up to 220 Mbps AES-128 (not encapsulated) Up to 500 Mbps AES-128/AES-256| (not encapsulated/encapsulated) FW 4.1.0 and …
Why do USB 2.0 or isochronous devices fail to work as expected when plugged into a Samsung NC220 or NC240 PCoIP monitor?
Answer: This occurs because on the NC220 and NC240 monitor series, USB Ports 0, 1 and 2 are brought out directly and port 3 is connected to an internal hub. On this hub, 1 hub port is connected to a RS232 device, and another hub port is connected to an …