Cannot RDP to a VM since November 18th 2014 night

Hello,

Since November 18th night I cannot RDP one of my VMs.
It was working during that day but I cannot access it since the Azure update that went wrong.

So I tried to restart it, recreate endpoints, connect from a different location and resize it without success.
The Status of the VM is Running and it's a Windows Server 2008 R2.

So, what can I do to make it works again?