Users Cannot Open Application or Desktop When Session Reliability is Disabled

Users Cannot Open Application or Desktop When Session Reliability is Disabled

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Article ID: CTX137888

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Updated On:

Description

Users cannot open an application or desktop if Session Reliability is disabled. Opening applications and desktops from XenApp or XenDesktop work on all devices, except iPad. Connections over port 2598 works, but port 1494 does not work.

  • The following error message appears when you open an application:

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  • The following error message appears when you open a desktop:

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Resolution

To resolve this issue, complete the following procedure:

  1. Open the CtxSta.config file located at C:\Program Files (x86)\Citrix\system32\ with as an Administrator.

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  2. Change the UID to a valid value. For example, stadca1A6F500B7 to STADCA1A6F500B7.

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  3. Restart the XML service.

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  4. Select Access Gateway > Virtual Servers from the Configuration Utility.

  5. Select the required virtual server and clear the option for the incorrect STA server in the Configure Access Gateway Virtual Server window. Click OK.

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  6. Select Access Gateway > Virtual Servers from the Configuration Utility.

  7. Select the required virtual server and add the STA server.

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  8. Ensure that the correct STA appears in the configuration.

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Problem Cause

Disabling session reliability in XenApp or XenDesktop Access Gateway Enterprise Edition setting breaks all connections. This forces all connections to use port 1494.

The user has changed the UID of the Secure Ticket Authority (STA) server to an invalid value (such as upper and lower case letters and or special characters). This might be a result of cloning the server.
Note: The UID of the STA server can only contain uppercase letters, numbers and a maximum of 15 characters.

Issue/Introduction

Users cannot open an app or desktop if you disable Session Reliability. Opening apps and desktops from XenApp or XenDesktop works on all devices except the iPad, that is connections over port 2598 work but port 1494 do not work. This article contains information about this issue.