Citrix Virtual Apps and Desktops: Session Launch Issues

Citrix Virtual Apps and Desktops: Session Launch Issues

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Article ID: CTX691223

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Description

Introduction

This article provides a list of Knowledge Base resources on how to investigate, troubleshoot, and prevent the most common issues with session launch in Citrix Virtual Apps and Desktops.

Overview of the Issue

The process of session launch in Citrix Virtual Apps and Desktops is dependent on a number of factors, including the operating system of the end user’s device and the VDA, the network architecture of the environment, and the versions of Citrix components installed. As a result, problems with published app and desktop start-up over ICA connections may arise for various reasons. Below we have grouped our knowledge content based on the symptoms that are most frequently experienced on the end user side. For some scenarios, we have also included specific indicators that would be visible for Citrix administrators, such as event log messages which would be helpful in narrowing down the root cause of the problem. We have provided a separate list of commonly encountered problems associated with known issues in particular versions of Citrix products. In the final section, the reader will find a list of tools, workflow- and “how-to”-articles that could be useful in designing, deploying, and maintaining Citrix products from the session launch perspective.

Appendix: Top Knowledge Content

Troubleshooting Common Problems

 

Error Message Article URL
Problems with starting the “.ica” file via Workspace appCTX804493 - Workspace app fails to automatically open “.ica” files.
 CTX221652 - Session launches in HTML5 instead of native Workspace app/Citrix Receiver
SSL Error 61CTX101990 - Session launch fails with an "SSL Error 61: You have not chosen to trust 'Certificate Authority'..." message on Receiver for Windows
 CTX108800 - Session launch fails with an "SSL Error 61: You have not chosen to trust 'Certificate Authority'..." message on Workspace app for Mac
Error Code 2517” / “Error Code 3500CTX241333 - Session launch over NetScaler fails with an “Error Code 2517” messageSee also: Version-specific problems
 CTX267692 - Session launch fails with an “Error Code 3500” message
Socket Error 10060”/ “Socket Error 10057CTX236975 - Session launch fails with a “There is no Citrix XenApp server configured on the specified address. (Socket Error 10060)” message
 CTX464063 - Session launch fails with a “Socket is not connected (Socket Error 10057)” message
The Citrix SSL server you have selected is not accepting connections errorCTX124153 - Session launch fails with a "Citrix SSL server you have selected is not accepting connections" error
 CTX230024 - Linux VDA session launch fails with a "Citrix SSL server you have selected is not accepting connections" error
“Cannot Start App” or “Cannot start Desktop” errorCTX238163 - Session launch fails with a “Cannot Start App” or “Cannot start Desktop” error
 CTX233424 - Users experience session launch failures with “Cannot Start App” or “Cannot start Desktop” errors. StoreFront server event logs contain XML errors in relation to those launch attempts.
“Unknown client error 1110”, ”Unknown client error 0” or “Unable to launch your application”  messages on connections via NetScalerCTX200890 - Session launch over NetScaler fails with an “Unknown client error 1110” message
 CTX134940 - Session launch over NetScaler fails with error “Unable to launch your application
“The Resource is unavailable currently. Try again later.”CTX292823 - Error - Unable to launch
 CTX482348 - Published applications fail to start with a “The Resource is unavailable currently. Try again later” error.
Session disappears at startupCTX200393 - Application launch progress bar disappears, the session doesn’t start.
 CTX238289 - Application launch progress bar disappears, the session doesn’t start. The issue persists even when the launch timeout value is increased.
 CTX460098 - Session launch starts and ends immediately. VDA System events contain a TDICA 1019 error. 
Grey screen, failed app launchCTX220418 - Grey screen at desktop launch. Applications fail to start. VDA System event logs contain a CtxUvi error 1002, 1003, or 1005 message(s) at some point after the VDA startup.
 See also: Version-specific problems
"You have not chosen to trust...'' errorCTX224709 - Session launch over NetScaler fails with a “You have not chosen to trust…” error  
“Cannot create a secure connection in this browser” or “Failed to construct 'WebSocket'” errorsCTX134123 - Session launch fails with “Cannot create a secure connection in this browser” or “Failed to construct 'WebSocket'” errors in Workspace app for HTML5
“Cannot connect to the server”CTX231312 - Session launch fails with a “Cannot connect to the server” error on Workspace app for ChromeOS
“The published resource is not available currently”CTX233005 - Session launch over NetScaler fails with error "The published resource is not available currently"
“Unknown client error 1110” or ”Unknown client error 0” on connections via FirefoxCTX227354 - Session launch fails with “Unknown client error 1110” or ”Unknown client error 0” messages on in Firefox
“Access is denied”CTX221555 - Session launch fails with an “Access is Denied” error. The VDA Application event logs show an event 1050. “Connection validation failed on domain domain.local for user username for reason ‘Unlicensed’" message.
“Cannot Complete Your Request”CTX286601 - Session launch over NetScaler fails with a “Cannot Complete Your Request” error
“The task you are trying to do can't be completed because Remote Desktop Service is currently busy”CTX459728 - Session launch fails with an error “The task you are trying to do can't be completed because Remote Desktop Service is currently busy” message
“You might be having an issue with a Citrix virtual driver”CTX263604 - Session launch fails with a “You might be having an issue with a Citrix virtual driver” error.
Black screen at desktop launchCTX235681 - Black screen at desktop launch

Version-Specific Problems

CTX Number Article URL 
CTX463471Session launch fails with a "Could not find the file named "C:\??\****.ica" message if the ICA file or the folder where the ICA file is downloaded is named with Unicode or non-English characters on Workspace app 2306, 2309. [HDX-55649]
CTX312240Published desktops launch with a grey screen or published apps fail to start after WEM Agent upgrade to versions 2103.2.0.1 or 2104.1.0.1
CTX463795Published desktops launch with a black screen on Windows 21H2 multi-session VDA
CTX477296Session launch over NetScaler fails with an “Error Code 2517” message.
CTX560646Session launch fails with an “SSL Error 27: No local security certificates could be loaded” message on Workspace app 2305.
CTX587626Session launch fails on Workspace app 2311

Tools, Resources, and “How-To” Articles

CTX Number Article URL 
CTX207624Citrix Health Assistant: Troubleshoot VDA Registration and Session Launch
CTX219718Citrix Quick Launch Tool: Application and Desktop Launch Testing
CTX128909Xendesktop Communication flow
CTX236889Authentication and launch communication flow: internal connections
CTX227054Authentication and launch communication flow: external connections with NetScaler
CTX204106How to launch applications Using Windows 10 Edge Browser
CTX101705How to troubleshoot slow session logons
CTX218256How to use RDP initial App
CTX335974How to launch an application in the “Initial App” mode of RDP