EX2 ultra not found

My EX2 ultra is not found although 3 blue LED are OK, network connexion OK, and EX2 found on windows explorer on the network. Phone assistance from France tells me the phone number is not correct. Help plse

Hello,

“Not found from were” ?? My Cloud?

http://support.wdc.com/KnowledgeBase/answer.aspx?ID=10439