The pop-up was looking for this legacy licensing endpoint citrixservices.citrix.com which is used for legacy file based license renewal and  and if it is blocked, the pop-up reports that Citrix Licensing endpoints are unreachable. However, this is not relevant for LAS configuration. This URL is used for legacy File based licensing and that can be ignored as it is not needed to communicate with LAS.

References :

https://support.citrix.com/external/article/CTX691468/check-for-available-renewals-may-show-er.html

https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX282379

You can ignore, this warning and select "Do not show this again" message as it has no impact on LAS functionality.

This pop-up was implemented a few years ago for Legacy licensing and is not relevant for LAS Setup.

Citrix is aware of this issue and will work on deprecating this Pop-up in the future releases.

This article talks about warning pop-up: "Cannot Connect to Citrix Licensing Endpoints" when launching Citrix Licensing Manager after LAS migration.

• Ensure that all the Licensing endpoints listed in https://docs.citrix.com/en-us/licensing/current-release/license-activation-service.html#citrix-cloud-commercial-endpoints are reachable by configuring your firewall to allow outbound traffic on Port 443 to the endpoint listed in the above link.

• Fetch the Licensing support bundle by following the steps mentioned in https://docs.citrix.com/en-us/licensing/current-release/citrix-licensing-manager/settings.html#support-bundle and check WebServicesForLicensing\Logs\ctxcognizancehandler.log and review the endpoints for which SSLOpen() failed as shown below.

01/04/2026 07:17:49.218 [Error] : Operations::DoInternetCheck : operations.cpp : 484 : Operations::HandlePopUpRequest while pinging CIS endpoint citrixservices.citrix.com:443/citrixservices/AllocateLicense/AllocateLicenseWS.asmx?wsdl failed with following error
OpenConnectionSSL(citrixservices.citrix.com,443) failed: SSLOpen() failed! doHandshake() failed! The operation completed successfully.

• If  SSLOpen() failed for a URL not listed in https://docs.citrix.com/en-us/licensing/current-release/citrix-licensing-manager/settings.html#support-bundle then that URL is used for legacy File based licensing and that can be ignored as it is not needed to communicate LAS. Example citrixservices.citrix.com.