Hi, I got some additional information:Under Windows 2012 R2 / hyper-V 6.3.9600.18841 (Only one standalone hyper-V server) Debian 8 with kernel 3.16.0-4-amd64 #1 SMP Debian 3.16.51-3 (2017-12-13) x86_64 GNU/Linux is working fine !
Problem between 3.16.43 and 3.16.44 linux kernel version is "only" under Windows 2016 (Big cluster farm) but I haven't the full informations about version at this point.
Best regards Vince