RDP error with embeeded display mode : The Local Security Authority cannot be contacted

Hello,

since I applied the last update of Windows 10 insider (build 14316) I encounter an issue when I try to connect with RDP to a virtual PC stored on an Hyper-V server.

The message is : The Local Security Authority cannot be contacted - Authentication failed

What is strange is :

- I have this issue with all display mode except "external" which runs correctely.
- I have this issue only with virtual PC, not with physical machine.

Thanks for your help