WD My Cloud crashes in few minutes after having attached USB HDD (My Book or Seagate)

My Cloud OS 3 Personal & Network Attached Storage My Cloud
10

Hello GThib

here you go…

http://community.wd.com/t5/WD-My-Cloud/My-Solution-to-My-Cloud-is-disconnecting-from-the-Network-and/m-p/680549#M7599