AAD Application Proxy for Work folders

Hi all,

This is my first post, so hopefully i'm in the right place to drop a question regarding AAD application Proxy to enable users to use Work Folders.

I've set-up Application proxy by following this blog: https://blogs.technet.microsoft.com/filecab/2017/05/31/enable-remote-access-to-work-folders-using-azure-active-directory-application-proxy/ and installed the Connector on my Windows Server 2016 domain joined and fully updated Work Folders server.

I can configure Work Folders from my private (non domain joined device) and can confirm that every think is working. When configuring Work Folders on our Windows 10 1703 AAD Joined Devices I'm getting an error message:
"There was a problem finding your Work Folder server":

Details: "Data in the stream is not in the proper format. (0x80c881000).

Can someone point me in the right direction?

Thanks!