We have a government client that has strict security protocols in place. We deployed their application to a remote web server using PowerClient and I can download and run it from my machine just fine as can others who are not on the client network. Smartscreen was blocking the installation of the Cloud App Launcher (CAL) for them so we packaged it up into a zip file and they were able to install it that way. The CAL app now shows up in their control panel.
However, even with the CAL installed, when they try to start the application the microhelp on the CAL window just flashes 'connecting...' and the app files are never copied and unpacked to the local C:\Users\NAME\AppData\Roaming\PBApps folder. Something on their side is interfering with this process. We deployed using the 'Default_withoutervice' option and they are using HTTPS. The application is not signed.
Is signing the exe our only option or are there other alternatives that we can have our client try?
PB 2019 R3 build 2703
SQL Server 2014