Guys I did everything like in the tutorial.. everything went exactly like in the tutorial.. no problem..
but then I close wallet.. and restarted wallet.. and then my masternode disappeard from the list.. can someone explain it to me ??
Did you add it to the masternode.conf file on you local PC? Also after the wallet restart you have to wait a bit till all the masternodes are added to the list - may take several minutes to sync (during which it will be showing "Not in the masternode list").