Snapmanager for hyper v remote procedure call failed

[robc]

Still trying to find my feet around NetApp systems and especialy Snapmanager can someone please help me here? i dont know where to look for this issue

Snapmanager for hyper v remote procedure call failed

[robc]

they are using Snapmanager 2.1.2 

Snapdrive version 7.1.4 and .5