Note: Citrix recommends that you download the latest version of Citrix Workspace app version 1904.1 or later and Receiver for Windows to LTSR 4.9 CU6 version 4.9.6001 or later that contain critical security fixes. Access to Hospital Citrix based applications relies on having a valid Hospital domain account. If you do not know your Hospital login information, please contact the Hospital Support Desk (ISD) at (984) 974-4357. Please note that beginning March 01, 2018, Hospital Duo 2-Step Authentication will be required when accessing Citrix applications when off-campus or if using Citrix Receiver.
Symptoms or Error
Different types of networks may have different MTU/MSS requirements, which may result on packets being fragmented when transmitted on those networks. This can cause issues with applications that use UDP as transport protocol due to improper handling of UDP packet fragmentation. In the case of Citrix XenApp and XenDesktop / Virtual Apps and Desktops, this affects EDT since it is a UDP-based protocol. These issues can result on performance issues in ICA sessions, on EDT connections failing and falling back to TCP, or even not being able to establish a session altogether. This is common when using VPN solutions like Cisco AnyConnect, when using Citrix Gateway hosted on Azure, when connected to certain Wi-Fi networks or mobile networks (3G, 4G, etc).
Environment: XenApp and XenDesktop 7.15 or Citrix Virtual Apps and Desktops 1808+ EDT-capable Citrix Receiver / Workspace app:
Receiver for Windows 4.9, Workspace app for Windows 1808+
Workspace app for Mac 1808+
Workspace app for Linux 1808+
Workspace app for iOS 1808+
Workspace app for Android 1909+
Solution
Citrix Virtual Apps and Desktops 7 1912 LTSR and Workspace app for Windows 1911 introduced support for EDT MTU Discovery. If using these versions (or newer) of the VDA and Workspace app for Windows, this workaround is not required. Please review the documentation for more details. This workaround is needed if using VDA 1909 (or older), Workspace app for Windows 1910 (or older), or Workspace app for Mac, Linux, or iOS. The workaround involves lowering the EDT MTU to a value that will not cause fragmentation. This MTU value needs to be determined for each network. A tool like mturoute.exe can help determine the appropriate MTU for a network. When using Azure:
If ICA traffic has to traverse an Azure Gateway, the EDT MTU must be set to 1350 since Azure limits the MTU on the Azure Gateway to 1400.
If using an Azure-hosted Citrix Gateway, the EDT MTU must be set to a value lower than 1500 (e.g. 1480).
Steps 1. Define the EDT MTU and Output Buffers Length in the ICA file template in the Storefront server:
Open the default.ica file for editing (by default it is located in C:inetpubwwwrootCitrix<StoreName>App_Datadefault.ica) Add the following options under the [Application] section: OutBufLength=1480 udtMSS=1480 (add this line if using Receiver for Windows 4.9 - 4.9 CU3, Workspace app for Linux 1808 - 1903, Workspace app 1808+ for Mac or iOS) edtMSS=1480 (add this line if using Receiver for Windows 4.9 CU4+, Workspace app for Windows 1808+, Workspace app for Linux 1906+) Notes:
If unsure whether to use 'udtMSS' or 'edtMSS', add both. The client will use the appropriate setting and ignore the one that does not apply. edtMSS and OutBufLength should be set to the same value.
1480 was used as an example. Replace 1480 with the value that's appropriate for your network. The client and server will agree on sizes during the connection negotiation.
Download Citrix Receiver 4.8
2. Enable Receiver/Workspace app to read the custom EDT MTU and Output Buffers Length values. NOTE: If using Receiver for Windows 4.9 CU4+, Workspace app for Windows 1808+, or Workspace app for Mac 1809+, the configuration described below is
NOT required, so step 2 can be omitted.
Create UDPStackParameters registry key, which is missing by default: HKCUSOFTWARECitrixICA ClientEngineConfigurationAdvancedModulesUDPUDPStackParameters There is a legacy issue in these Receivers for Windows where OutbufLength, when passed in an ICA file, is ignored. Even if the registry value is modified to '*', meaning accept everything from the ICA file, the ICA file setting is still ignored. For this to work, in addition to creating the 'UDPStackParameters' key as mentioned above, it is also necessary to modify the OutbufLength value in the registry and set it to the desired value determined above (1480 in the example):
Modify the appropriate App Property to allow Receiver to read the customer parameters in the ICA file. This property is set to NO by default. To do this, open Terminal and run: defaults write com.citrix.receiver.nomas UDPStackParameters -bool YES
Toggle the the 'Read EDT stack parameter' option, which is disabled by default: Settings > Advanced > Adaptive Transport Settings > Read EDT stack parameter
Enable the 'EDT Stack Parameters' option, which is disabled by default: Settings > Advanced > EDT Stack Parameters
Problem Cause
MTU alteration not accounted dynamically by EDT, and IP Fragmentation not handled properly by network appliances.
Citrix Receiver Download Install 4.9 Window
Additional Resources
Free download Citrix Receiver 2020 LTSR for Windows 7, 8, 10, XP, and Vista. The given version is the latest released by Citrix official website. You can check for latest released any time through the following of below option. Citrix Receiver will help you to get access to apps, and desktops from any device. It is an easy-to-install client software tool for all Windows version which have 32 bit and 64 bit operating system. This software tool can provide you access to the XenDesktop or XenApp installation. It is free for everyone that provides safe and secure access way to apps, data, and desktop. Citrix Receiver provides safe and secure access way from various devices such as Computers, Tablets, Macs, and Smart phones. It supports to all the operating systems such as Windows, Android, iOS, Linux, Mac, Windows Phones, Chrome OS, and Universal Windows platforms.
Citrix Receiver LTSR Download for Windows 7, 8, 8.1, and 10
Download Citrix Receiver 4.9.1
Latest version v4.9 and all old version free download for PC Windows. You can install Xendesktop and XenApp on your PC using Citrix. Citrix is the safest way to access applications, your secret data, and desktop from any device and platform. All supported devices and platforms for Citrix are PCs, Macs, Smart devices, Tablets with Windows, Android, iOS, Linux, Mac, Chrome OS, and even all operating system.
How to Install Citrix Receiver on Windows Desktops?
Download Citrix standalone installer from below here
Press to “check” Citrix license agreement box
Now press continue to start
Wait for completion the downloading
Now double click on the downloaded file to run the setup
After successful installation, open Citrix Receiver and enter server or email address
Followed by user name, password and domain
If you have installed an old version of Citrix Receiver. When you will download the latest version and install it on your PC Windows. The latest version of Citrix Receiver will replace previous installed version. You don’t need to remove it.
Download latest version of Citrix Receiver for Windows free. There is a direct downloading link of Citrix at below here which gives you full version software tool in single click, and an another link which is from official downloading link of Citrix. If you want to check for new release, then visit through the link below.