Enabling SecureICA causes connections to drop shortly after launch
Article ID: CTX269689
Updated On:
Description
When enabling the option for SecureICA, VDAs will not launch a session. Sessions will begin to build but will disappear shortly afterwards before reaching a desktop or displaying a published app. Event Viewer will also show no explanation as to why this is occurring.
Resolution
SecureICA cannot be used if FIPS is enabled locally or by Group Policy. If FIPS is required to meet DoD STIG compliance and some form of secured connectivity is also required, ICA connections can be made over TLS port 443
Problem Cause
FIPS is enabled on VDAs. SecureICA is incompatible with FIPS encryption, and thus connections are dropped once FIPS requirements are not met.Additional Information
Enabling Transport Layer Security to secure ICA traffic: https://docs.citrix.com/en-us/citrix-virtual-apps-desktops/secure/tls.html
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