Why is there an issue with Network recognition when networkView.isMine is called from within Update function ?

i encountered a strange issue recently which has never happened before .

I am usually able to call my networkView.isMine from with my update function .

but not even a simple function like this will work correctly

 Void Update ()
 {
 if (networkView.isMine == true)
 {
 print ("is mine");
 }
 
 }

it works fine if the network view is that of the client . but on the server i get nothing . I do believe that it has even flip-flopped around where by the server gave a print out and the there was no printout via the client connection.