Since upgrading my SEPM servers to 12.1.5, it is very frustrating to export clients from the admin console.
I right-click on the package I wish to export and go through the options to configure the installer. I click Ok and the system will work on generating the managed package. When it's ready to download the package the download button appears but 9 times out of 10 when I click on the download button, the window just disappears and the download does not begin. 1/10 times it will start downloading the files.
I have two web front-ends and have tried it on each server to the same results. I have tried IE11, Firefox 33, and Chrome 37 on Windows 8.1. They all behave the same way and act like I clicked off of the pop-up layer and it just disappears the majority of the time.
The servers are running Windows Server 2012 R2. I have done this process many times before with previous versions but am having less luck with SEPM 12.1.5.