It was not a firewall or port blockage It was a trace listener.log file increasing (5 Giga) ( it was located under C:\app\admin_user_name\diag\tnslsnr\onlinesurvey\listener\trace) i have resolved this issue by 1- stop the listener lsnrctl stop 2- shutdown db sqlplus / as sysdba SHUTDOWN IMMEDIATE 3- rename the log ( it should be listener.log file) 4- start db sqlplus / as sysdba STARTUP 5-start listner lsnrctl start to stop listener log at all i used this command lsnrctl set log_status off