Pre-Launched HDX Session warning with the message "The published resource is currently unavailable".

When a user opens Citrix Workspace app, they randomly observe the warning pop-up of "Pre-Launched HDX Session" with the message - "The published resource is currently unavailable. Contact your system administrator for help"...

Unable to connect to the server. Contact ... with the following error (no error text available)

1: Via Third party proxy, Workspace report error when launching ICA file "Unable to connect to the server. Contact your systemadministator with the following error no error text available". 2: By PassThird party proxy,Workspace launching ICA file is successful...