Weird connection problem with AdminServer by wlst

 Hello,
Using WL 9.2 MP3 on Linux RedHat.

What I do :

1. Enter in a wlst shell (offline)

2. connect('weblogic','password','t3s://MyServer.wshs:9002')

I then get :

Connecting to t3s://MyServer.wshs:9002 with userid weblogic ...
Traceback (innermost last):
  File "<console>", line 1, in ?
  File "<iostream>", line 22, in connect
WLSTException: 'Error occured while performing connect : Error getting the initial context. There is no server running at t3s://MyServer.wshs:9002 Use dumpStack() to view the full stacktrace'

Stacktrace point out to what it seems to be a network problem...like " no route to host "

Then I do

3. connect('weblogic','password','t3s://MyServer:9002')