How to Remove a Server from a XenServer Pool that Contains Only One Host

This article describes how to remove a server from a XenServer pool that contains only one server. The procedure to remove servers is also described in the XenCenter help. When you remove a server from a pool that contains only one server Pool Master, the pool will be deleted and the Pool Master...

NSC: NetScaler (Citrix ADC) MPX/SDX 26000Z-50S, MPX 15000Z-50G FIPS

Citrix Systems, Inc. announces a Notice of Status Change for the NetScaler Citrix ADC MPX/SDX 26000Z-50S, MPX 15000Z-50G FIPS The tables below explain the NetScaler Citrix ADC life cycle management milestones as well as important information regarding dates and options during this period. The dat...

Create OS layer version fails when offload compositing is enabled

Issue : Creation of OS layer version fails, when 'Use Offload Compositing' option is enabled. Error : "The Compositing Engine failed to initialize after '00:20:00'" Console shows 'Waiting for the Compositing Engine machine to be ready', followed by 20 minute time out. ELM logs show...

Enabling NetScaler to forward original client source IP to backend server

This guide outlines the various methods available to ensure that the backend server is equipped to collect the original client IP through the NetScaler. The focus of this article lies in configuring the NetScaler to effectively forward the original client source IP to the backend server...

Update from 12.1 to 13.x getting Cannot Complete Request / gateway plug-in for java is not supported

When upgrading from version 12.1 to 13.0 and get "Cannot complete request" through NetScaler...

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...

XenCenter 8.1.2 - For Citrix Hypervisor 8.1

Who Should Install This Update? This XenCenter update is for customers who use XenCenter as the management console for Citrix Hypervisor 8.1.0 or an earlier CR. It constitutes the following deliverable: File Name| XenCenter.msi ---|--- Description| This file updates the XenCenter installation on...

WindowHistory Tool

Created Date: 03/22/2006 Updated Date: 09/29/2017 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 Navigate to your platform: WindowHistory64 4.0 for x64 Platforms| WindowHistory 4.0 for...

Graceful Logoff from a Published Application Renders the Session in Active State

Graceful logoffs from a published application launched in a seamless, fixed window, or as an RDP Initial Program, might result in the session not closing and the user being logged off. Sessions can be reset or exited correctly by manually resetting them, or by terminating remnant user processes i...

App Layering - Shutdown for Finalize Error, "A RunOnce script is outstanding"

In any layer, when creating it, you must double-click on the Shutdown for Finalize script, where we determine that there are no pending Windows operations that need to complete before we finalize. When you run this, you may see this: Layer Finalize is BLOCKED, The outstanding items are: 'a RunOnc...

Citrix Secure Access Client for Windows and Citrix Endpoint Analysis Client for Windows Security Bulletin for CVE-2026-53565 and CVE-2026-53566

Severity - High Description of Problem Vulnerabilities have been discovered in the Citrix Secure Access Client for Windows and Citrix Endpoint Analysis Client. Refer to the information below for further details: Affected Versions: The following supported versions of Citrix Secure Access Client fo...

Citrix Secure Access Client for Windows Security Bulletin for CVE-2025-0320

Severity - High Description of Problem A vulnerability has been discovered in the Citrix Secure Access Client for Windows. Refer to below for further details: Affected Versions The following supported versions of Citrix Secure Access Client for Windows are affected: Citrix Secure Access Client fo...

NetScaler 14.1 - STA server marked down

STA server status is Down on Gateway vserver though it is reachable from the NetScaler...

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...

BlobTierInadequateForContentLength during Machine Catalog Update

The following error is seen while updating a MCS Machine Catalog after resizing the size of the Master VM disk. Exception: StudioErrorId : ProvisioningTaskError ErrorCategory : NotSpecified TaskState : FailedToCreateImagePreparationVm TaskStateInformation : Terminated ErrorId :...

FAS - Upgrade of FAS server failed with error "Unable to complete the installation"

1 Attempting to upgrade FAS server component fails with below error- 2 Reinstallation attempt fails with the same error. 3 Event viewer shows below error : Log Name: Application Source: MsiInstaller Event ID: 11722 Task Category: None Level: Error Description: Product: Citrix Federated...

On iPad Pro, text becomes blurry when using custom resolution.

On iPad Pro, text becomes blurry when using custom resolution...

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...

Citrix PVS rebalancing leaves target devices unresponsive with CheckPoint agent installed

Rebalancing PVS targets devices ends up with the target devices in an unresponsive frozen state. The only method to recover target devices is to force restart the target devices on the hypervisor. Customer validated all PVS servers are configured as PVS login servers. Target devices fail to...

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...

Storefront - Event ID 3005 - The request queue limit of the session is exceeded

When a user attempts to enumerate using the StoreWeb URL in a browser, not all icons are not enumerated. This can also occasionally result in enumeration failure and an error stating "Cannot complete your request" during enumeration. On the Storefront server, Windows Event Viewer Applications and...

Updating certificate on NetScaler failed with error

The following error occurs when updating a certificate on the NetScaler appliance. ERROR: Certificate is referenced by a CRL, OCSP responder, vserver, service, monitor, SSL profile, CA Cert Group, another certificate, or a policy expression using XMLENCRYPT or XMLDECR...

"Not authorized to execute this command" error for External Authentication System User

After login ADC management GUI using local AD user, belowError message prompt: "2 errors encountered. Not authorized to execute this command show ns license Not authorized to execute this command show ns feature"...

Citrix Profile Management user configuration for Microsoft Edge

Microsoft announced retirement of Internet Explorer in Summer 2022, MS Edge was deployed to Citrix XenApp servers with published desktops. When users log off and log on again the MS Edge presents "Out of box" dialog prompts. MS Edge favorites, homepage, history, etc.are not preserved. This articl...

Webcam Preview Test Application

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 Simple Windows UI application to test and troubleshoot Webcam redirection on Terminal Server and Workstation VDAs, as well as to check...

STIG V-218773 - Recycling IIS App Pools on Storefront Servers

Address STIGV-218773 compatibility with Citrix Storefront vis a vis of the virtual memory an application pool uses...

Failed to uninstall/install PVS target device software via SCCM or command line.

When using SCCM or using a command line, PVS target device installation failed due to filesystem filter driver CFsDep2.inf is not installed error...

SDWAN Center : (CVE-1999-0517)SNMP Agent's Default Community string (PUBLIC) and SNMP 'GETBULK' Reflection DDoS

Vulnerability issue...

FAQ: Licensing for Disaster Recovery Servers

Q: Can existing licenses in the production environment be used for a Disaster Recovery Server? A: Yes, it is possible to use the same server/farm licenses in another server/farm if it is a disaster recovery server/farm. Q: Can both Production and Disaster Recovery servers run simultaneously? A: N...

[Workspace App for Windows] - Display Issues when user re-docks their Notebook on the docking station and reconnecting to Citrix Session with Multiple Monitors

Scenario : Users using notebooks and working with full screen sessions without desktop viewer to access their Citrix session, aka mobile thin client. The users usually have a docking station and two identical monitors at their workplace. When these users come back from a meeting and re-dock into...

How to Defragment a PVS vDisk with minimum downtime

The purpose of this guide is to instruct a PVS Administrator on the quickest way to perform a defragmentation process on a vDisk, while minimizing the amount of downtime incurred for the PVS Targets. It is important to note that, while this process can be performed without having to Power Down th...

Database Creation Error when creating a new WEM database using a hyphen ("-") in the database name

When attempting to create a new WEM database when using a hyphen '-'in the name, an error appears saying "Database Creation Error". The Citrix WEM Database Management Utility Debug Log contains the following Exception: Exception - CreateVuemdb.Run : SqlDatabaseHelper. connection Error : 102 |...

How to fix Citrix DNE Installation and Other Issues

Citrix Gateway, formerly Citrix NetScaler Unified Gateway Citrix Virtual Apps, formerly XenApp, fits the enterprise need to bring legacy apps into a cloud management environment. This article describes how to fix Citrix DNE installation and other issues. Background Citrix Deterministic Network...

XenMobile Analyzer Tool

The new XenMobile Analyzer Tool is a cloud-based solution that allows XenMobile administrators to diagnose issues proactively and in real time. XenMobile Analyzer environmental checks can identify device issues, user enrollment issues, and authentication issues. Numerous use-cases and deployment...

Error: "Management Interface: vDisk Properties were Lost" on Provisioning Services

Creating a vDisk fails before completion and displays the following error message: "Management Interface: vDisk properties were lost."...

Windows Virtual Delivery Agent for CVAD and Citrix DaaS Security Bulletin CVE-2025-6759

Severity - High Description of Problem A vulnerability has been identified that impacts Virtual Delivery Agent for Windows used by Citrix Virtual Apps and Desktops and Citrix DaaS. Affected Versions: The vulnerability affects the following supported versions of Windows Virtual Delivery Agent for...

NetScaler-13.1-Warning "is_whitelisted_request - Dropping invalid http request" in ns.log

You may see warning message like below in ns.log and would like to know why this log exists. Aug 12 16:50:25 X.X.X.X 08/12/2024:07:50:25 GMT XXX 0-PPE-2 : default SSLVPN Message 918225 0 :"iswhitelistedrequest - Dropping invalid http request:|/v1|"...

NetScaler-How to return a customized error page when the LB is Out Of Service

How to return a customized error page when the LB is Out Of Service in NetScaler...

ADC-13.1-How to support multiple domain SSO to StoreFront with user "distinguishedName" attribute

How to support multiple domain SSO to StoreFront from NetScaler with user "distinguishedName" attribute...

2402 LTSR target device stuck initializing while checking the status of Hybrid joined machines

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Citrix Provisioning - Configuration Wizard fails after upgrade to 2503

PVS Configuration Wizard fails with errors after PVS upgrade to version 2503. ConfigWizard.log located in C:\ProgramData\Citrix\Provisioning Services\Log on the PVS Server shows: ERROR:SqlException caught, Number = 207, Message = Invalid column name 'isXsProxyConfigRequired'. Updating server...

Enabling Core Dump Collection with ABRT on RHEL/CentOS

This KB outlines the steps to enable core dump collection for Linux VDA modulesctxgfx etc using the ABRT Automatic Bug Reporting Tool framework on RHEL/CentOS systems...

CWA 2402 - Client attempts to connect to VDA on SSL but VDA is not SSL enabled

Unable to launch applications internally, and the error is - cannot connect to the . Ports 1494 and 2598 are open from Client to VDA. Client attempts to connect to the VDA over UDP/TCP 443...

Citrix App Layering 2409 - Unable to Edit App Layers with Boot Error 0xc000000f

Administrators may encounter an issue where they are unable to edit Application Layers within Citrix Elastic Layer Management ELM version 2409 after applying the February 2025 patches to their Windows 11 24H2 packaging machines. This inability to edit App Layers is accompanied by aboot error code...

An error occurs when specifying the license server by IP address in Citrix Studio

In Citrix Studio, select Licensing from the left-hand tree and click Change License Server, when entering IP address in the "Change License Server" window that appears, the message "Connected to a trusted server" is displayed. However, when returning to Studio, the error message "Cannot connect t...

uberAgent service stops after a few seconds

Windows' Services console shows that uberAgent service is not running. When manually started, the service starts and stops after a few seconds. uberAgent log file located in C:\Windows\Temp default location shows the issue with network driver startup. Example: 2025-03-01 17:28:33.013 +0200,INFO...

ShareFile Support changes on Citrix Endpoint Management (CEM) Integration

Important Notice: Impact of ShareFile Support changes on Citrix Endpoint Management CEM Integration Citrix Endpoint Management CEM offers robust integration with ShareFile, enhancing secure file sharing and collaboration. However, it's crucial to understand that the continued functionality of the...

Topaz Signature Pad as COM Port Device Disappears after Logoff

Topaz Signature will disappear after users log off on a kiosk workstation. The environment contained: Citrix Virtual Apps and Desktops version 2203 CUx Desktop of Server VDA, any supported OS Citrix Workspace App 2402 CUx Windows 10/Windows 11...

Duplicate or Excessive Data in the Site Database May Cause Delivery Controller Performance Issues

The Citrix Broker Service experiences memory usage spikes, with memory consumption increasing significantly over a short period. This may lead to degraded performance or instability on the Delivery Controller. Affected Environments : CVAD environments with manually provisioned VDAs or PVS VDAs...

Session Launch Failure Issue when Anti Keylogging is enabled [Windows 11 24H2 Update]

On Windows endpoints with the most recent Windows 11 24H2 update, session launches may encounter failures when the anti-keylogging feature App Protection is enabled. This issue is attributed to the changes in Windows system APIs leveraged by App Protection features...