Probe Agent can not communicate with Citrix Gateway with port 5000

Error "Failed to authenticate Citrix Gateway credentials" raises if non 443 port is used in the FQDN of Citrix Gateway URL...

Server prefers weak encryption ciphers during TLS negotiation

TLS cipher suite issues were detected: Server prefers weak encryption ciphers during TLS negotiation...

Citrix FAS - Incorrect username and password

Incorrect username and password FAS After launching desktop when users tries to log on. No error on the certificates, no error in "Application" and "System" in the FAS server. VDA event logs Windows logs Security and looking for audit failure at the same time as the login failure: 0xC000006A| use...

Citrix License Server susceptibility to certain Apache CVEs

Citrix License Server may be flagged by vulnerability scanners as potentially impacted byCVE-2006-20001, CVE-2022-36760, and/or CVE-2022-37436. This is because Citrix License Server uses Apache version 2.4.54 inLicense Server version 11.17.2 build 42000 and older versions of Apache in older build...

Get-BrokerController : Insufficient administrative privilege when ran via Remote POSH SDK

Issue using Get-BrokerController command when using remote POSH SDK with Citrix Cloud. Error : Insufficient administrative privilege...

Citrix Receiver Diagnostics Tool - For Windows

Citrix Receiver Diagnostics Tool for Windows Created Date: December 16, 2014 Updated Date:September 13, 2023 Please note: You can download the required file from the Citrix downloads website by visiting the following link:https://www.citrix.com/downloads/citrix-tools Description The Receiver...

​StoreFront Shows Blank Icons for Published Applications

StoreFront shows blank icons for the published applications. This issue occurs after introducing a new secondary store in the environment. If we clear out the icon cache and reset IIS storeWeb\AppData\CtxsWebProxyIconCache, the issue gets fixed temporarily...

New Lossless Compression Codec (MDRLE) Added to HDX Thinwire Graphics

There are 3 Thinwire bitmap encoding modes used in current XenApp and XenDesktop Server OS and Desktop OS VDA graphics remoting: Full screen H.264 Thinwire Plus Thinwire Plus with selective H.264 Legacy GDI remoting uses the XPDM Remoting driver and so does not use a Thinwire bitmap encoder Curre...

How to Remove the "Skip Check" Option from Post-Authentication and nfactor EPA Scans

This article describes how to remove the "Skip Check" option from EPA.HTML on post-authentication NetScaler Gateway EPA scan. The solution in this article is meant for X1, Default, GreenBubble and RfWebUI portal themes...

XenServer Security Update for CVE-2026-4397

Severity: Medium Description of Problem An issue has been identified in XenServer 8.4 which, when starting a VM on a host with limited available memory, may allow a privileged user in that newly starting VM to access memory data of a previously terminated VM. This issue has the following...

XenServer Security Update for CVE-2025-58151 and CVE-2026-23553

Severity:Medium Description of Problem An issue has been identified in XenServer 8.4 that may allow privileged code in a guest VM to cause the host to become slow or unresponsive to management operations. This issue has the following identifier: CVE-2025-58151 A further issue has been identified ...

Newly published App-V applications are not visible to end users

After most recent upgrade of Web Studio users are not able to see newly published App-V packages/applications. This issue affects only newly published App-V applications...

Citrix Monitor: user logon time is really high due authentication time

When checking Citrix Director or DaaS Monitoring, on user's Logon Performance, we can see that the Average Logon Duration is high Checking in individual user's logon, Authentication time is really high for some users, what increases the average time...

NetScaler-13.1-How to implement authorization policy for Oauth user groups

In Oauth response, the user groups can be carried in the response with customized field. However, we can't relate the string of group to the group attribute of the user. We may have question for how to apply authorization policy for Oauth user groups. In this example, the default authorization...

After updating MCS Catalog no changes are made to the VMs in the catalog

MCS catalog can be updated with a new master image with no errors. Howver when the VMs are rebooted from the DAAS console the VMS are not updated with the new image...

FIDO2 Authentication Does Not Work With Webpages Opened Using Microsoft Edge

Users are not able to Authenticate to a website that requires FIDO2 Authentication using a Yubikey when using Edge on VDA Devices. The users are constantly prompted to select a Smartcard device. The same users are able to Authenticate onto the same website using Chrome or Firefox inside the same...

Black artifacts on published apps once they resize the window or plugout -plug in external monitors

Black artifacts appear within published applications...

SSH communication between Netscaler Console nodes and/or Netscaler/Netscaler-SDX instance(s) fails

After upgrading Netscaler Console aka. ADM from earlier versions to either13.1-53.17 or 53.22 refresh build or 14.1-25.53, certain tasks like re-creating HA deployment, Netscaler backup , or other tasks involving SSH connection may fail and manifest in error popup or log entries in...

InstallEmbeddedBrowser=N param is not honored by CWA 2403

The installation process for Citrix Workspace App for Windows 2403 is unable to honor command line parameters correctly, causing Citrix Enterprise Browser CEB to be installed even when the switch “InstallEmbeddedBrowser” is set to “N” Example : CitrixWorkspaceApp.exe /silent InstallEmbeddedBrowse...

The right-click does not work on the start menu of Windows 11.

Right-click does not work on the start menu of Windows 11. This issue only occurs when VDA is installed. Uninstall VDA or VDA not installed environments do not cause this issue...

How to Extend CA Validity Period and Renew FAS Certificates

This article is designed to describe how to extend CA Validity Period and renew FAS Certificates...

How to create a custom report from the DaaS Monitor console

The Custom Reports tab provides a user interface for generating Custom Reports containing real-time and historical data from the Monitoring database in tabular format. Note: the Custom Reports feature requires a Premium license...

WEM agent is not able to connect/synchronize with the WEM Broker Server

ISSUE: WEM Agent is not able to connect and synchronize with the WEM Broker servers ERRORS PRESENT: The WEM Agent session & Debug logs show the following error: Exception - AgentLocalCacheSync. : The communication object, System.ServiceModel.Channels.ServiceChannel, cannot be used for communicati...

NetScaler LOM Version and Support Matrix

This article provides information on Lights out Management LOM and support matrix for NetScaler model and LOM firmware version. Lights out Management LOM Various NetScaler MPX appliances have an Intelligent Platform Management Interface IPMI also known as the Lights out Management LOM port on the...

XenServer Security Update for CVE-2025-58147 and CVE-2025-58148

Severity: High Description of Problem Several issues have been identified in XenServer 8.4 that may allow privileged code in a guest VM to compromise or crash the host. These issues have the following identifiers: CVE-2025-58147 CVE-2025-58148 Affected Versions These issues affect XenServer 8.4...

NetScaler Gateway - App launch failure Error: "Session reconnection timeout"

Users attempts to launch an application externally via NetScaler Gateway and observed the below error Application launch fails consistently and the behavior is same with both web browser and the Citrix Workspace Application...

Kerberos KNOB stopped working

The KNOB “nsapimgr -ys arg1=1 -ys call=nsenablepreferredkrbetype” no longer works after upgrading from 13.1 to 14.1...

VDA 2203 OS Windows 11 || Username password incorrect with domain passthrough and SSON not working

Username password incorrect with domain passthrough and SSON not working...

Hotfix XS82ECU1084 - For Citrix Hypervisor 8.2 Cumulative Update 1

Who Should Install This Hotfix? This is a hotfix for customers running Citrix Hypervisor 8.2 Cumulative Update 1 and is only available to customers on theCustomer Success Servicesprogram. Note: Citrix Hypervisor 8.2 Cumulative Update 1 reaches end of life on Jun 25, 2025. Upgrade toXenServer...

Hotfix XS82ECU1081 - For Citrix Hypervisor 8.2 Cumulative Update 1

Who Should Install This Hotfix? This is a hotfix for customers running Citrix Hypervisor 8.2 Cumulative Update 1 and is only available to customers on theCustomer Success Servicesprogram. Note: Citrix Hypervisor 8.2 Cumulative Update 1 reaches end of life on Jun 25, 2025. Upgrade toXenServer...

How to Configure a Promiscuous Virtual Machine in XenServer

This article describes how to configure a Virtual Machine VM running on XenServer to behave promiscuously on the network, that is, allow it to see all network traffic on the Physical Network Interface PIF. Certain applications, such as network diagnostic or performance monitoring tools, might...

How to enable the picture copy/paste operations between CWA client and VDA

This article describes how to restrict the copy/paste operations between CWA client and VDA, only keeping the picture copy/paste enabled...

Storefront Installation Error Adding Local Administrators to CitrixStorefrontAdministrators Group

Install StoreFront with below error: There was an error adding user accounts in the Administrators local group to the CitrixStorefrontAdministrators local group.See the log files described in the article 'Troubleshoot Storefront' in the Storefront product documentation. Try adding these user...

Support for ICA files in XenApp/XenDesktop Environment

When users are connecting to XenApp or XenDesktop with an ICA file, there could occur a wide range of issues related to connection, load balancing, performance,cosmetic issues with an application and so on. For users connecting with Citrix Receiver or Citrix Receiver in conjunction with StoreFron...

How to check write cache disk usage from XenServer Hypervisor

How to check Write Cache Disk usage from XenServer hypervisor...

How to Force Secure and HttpOnly Cookie Options for Websites Using NetScaler Appliance

The web administrators may forceSecure and/orHttpOnly flags on the Session ID and the authentication cookies that are generated by the web applications. Modifying Set-Cookie headers to include these two options can be done using an http Load Balancing Virtual Server and Rewrite Policies on a...

How to Secure SSH Access to the NetScaler Appliance with Public Key Authentication

This article contains information about securing administrative access to the NetScaler appliance by using the public key authentication mechanism of Secure Shell SSH. Requirements To complete the procedure in this document, the NetScaler appliance must have the following tools: An SSH client...

Secure Mail does not sync emails after upgrading to version 10.6.0

Emails are not syncing for users after the Secure Mail update to 10.6.0. We will see the following Socket errors in the logs: 2017-07-25T06:17:37.266-0400 AGTunneler INFO 4 -AGSocket connect:withPort: -AGSocket connect:withPort:: CallOriginalconnect errno = 36 - 'Operation now in progress', fd = ...

Windows 10 & 11 Compatibility with Citrix Virtual Desktops (XenDesktop)

With the release of the Windows 10 & 11 Operating Systems, Microsoft introduced a new way to build, deploy, and service Windows:Windows as a service. New features are packaged into Feature Updates. Bug fixes and security fixes are packaged into Quality/Feature Updates. These updates can be deploy...

Error: "To Use Desktop Lock Feature, Make Sure Receiver is Installed and is Working Fine With Single Signon" While Installing Desktop Lock

This article is intended for Citrix administrators and technical teams only. Non-admin users must contact their company’s Help Desk/IT support team and can refer to CTX297149 for more information. Trying to install and activate Desktop Lock, but cannot get it to install. "To use Desktop Lock...

ADC-The hostname of Citrix ADC instance is not displayed in ADM

When we add ADC into ADM, the page of adding ADC to ADM may stuck at "Trying to connect XXX". If we open a new page to check ,we may notice that ADC is added to ADM , but the hostname is not displayed. And we may found the masinventory process is not running as no output is displayed for the...

NetScaler: FQDN based service is Down

FQDN based service is not coming UP and showing Server State as DOWN The Monitor status might be "Domain name not resolved" But from CLI, if you tried to resolve the hostname it might show the response...

Citrix Director Infrastructure Monitoring – License Server Connection status is not available

When admin checks Delivery Controller data in Citrix Director - Infrastructure Monitoring, the license server related information is not available. All other metrics are displayed correctly. License Server is configured correctly and there are no issues with licenses. CVAD Site is functioning...

Profile Management VHDX auto expansion doesn't work CompactVHDIterations set to 1

Citrix profile Manager is configured with profile containers with the entire profile contained in the container Profile container auto-expansion is enabled Profile container VHD compression is also enabled The number of logoffs to trigger VHD disk compaction is configured to 1 Under the above...

How to Test USB Device Driver Compatibility Using RDP Remote FX USB Redirection

To troubleshoot USB devices that may not function correctly using Citrix Generic USB Redirection. Such as devices that work correctly when redirected using Single User Desktop OS VDAs, but may not work correctly in Multiuser Server VDAs. A useful troubleshooting step is to test redirecting the...

Intelligent Build to Lossless monitoring

Monitoring Intelligent Build to Lossless can be done via the Graphics status indicator: If more in-depth monitoring is needed, an in-session Intelligent Build to Lossless visual indicator can be enabled for the session. This indicator is turned off by default. When enabled, it will display a visu...

Microsoft Security Update Validation Report April 2025

Microsoft’s April 2025 security updates have passed Citrix testing the updates are listed below. The testing is not all-inclusive; all tests are executed against English only environments and issues may still be found upon implementation. Follow best practices for testing and installing software...

Citrix VDA - How to stop VDACEIP collection

How to stop VDACEIP collection on the VDA. VDA: any version...

NetScaler Console and NetScaler Agent Security Bulletin for CVE-2024-12284

Description of Problem A vulnerability has been discovered in NetScaler Console formerly NetScaler ADM and NetScaler Agent. Refer to below for further details: Affected Versions The following supported versions of NetScaler Console and NetScaler Agent are affected: NetScaler Console 14.1 BEFORE...

XenServer and Citrix Hypervisor Security Update for CVE-2024-45818

Description of Problem An issue has been identified that affects both XenServer 8 and Citrix Hypervisor 8.2 CU1 LTSR and allows a malicious administrator of a guest VM to cause the host to crash or become unresponsive. This issue has the following identifier: CVE-2024-45818 What Customers Should ...