ORA-12560 ntt2err message

Question

Hi everyone,
For a couple of days I have tried to connect my Application Express database (11.2 XE) based on maxapex.com. My friend can connect to this db without any error. He also tried to tnsping and it succeded. But if I want to connect this db I am getting ORA-12560 error in tnsping application:
C:\Users\xxx>set ORACLE_HOME
ORACLE_HOME=D:\Oracle\oraclexe\app\oracle\product\11.2.0\server
C:\Users\xxx>tnsping brown.maxapex.com
TNS Ping Utility for 32-bit Windows: Version 11.2.0.2.0 - Production on 28-MAY-2
012 13:18:04
Copyright (c) 1997, 2010, Oracle.  All rights reserved.
Used parameter files:
D:\Oracle\oraclexe\app\oracle\product\11.2.0\server\network\admin\sqlnet.ora
Used HOSTNAME adapter to resolve the alias
Attempting to contact (DESCRIPTION=(CONNECT_DATA=(SERVICE_NAME=))(ADDRESS=(PROTO
COL=TCP)(HOST=173.224.213.131)(PORT=1521)))
TNS-12560: TNS:protocol adapter error
C:\Users\xxx>But ping utility works as in following:
C:\Users\xxx>ping brown.maxapex.com
Pinging brown.maxapex.com [173.224.213.131] with 32 bytes of data:
Reply from 173.224.213.131: bytes=32 time=436ms TTL=48
Reply from 173.224.213.131: bytes=32 time=404ms TTL=48
Ping statistics for 173.224.213.131:
    Packets: Sent = 2, Received = 2, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 404ms, Maximum = 436ms, Average = 420ms
Control-C
^CWhen I looked for the trace file of net services I see this message in tnsping.trc file:
nsopen: opening transport...
nttcon: entry
nttcon: toc = 1
nttcnp: entry
nttcnp: exit
nttcni: entry
nttcni: Tcp conn timeout = 60000 (ms)
nttctl: entry
nttctl: Setting connection into non-blocking mode
nttcni: trying to connect to socket 568.
ntt2err: entry
ntt2err: soc 568 error - operation=1, ntresnt[0]=530, ntresnt[1]=53, ntresnt[2]=0
ntt2err: exit
nttcni: exit
nttcon: exit
nserror: nsres: id=0, op=65, ns=12560, ns2=0; nt[0]=530, nt[1]=53, nt[2]=0; ora[0]=0, ora[1]=0, ora[2]=0
nsopen: unable to open transportHave you any workaround to solve this issue?
Thanks.

Answer 1

It does not work. I have already tried it many times. Yes, I am doing something wrong in somewhere but I didnt recognize yet.
C:\Users\xxx>set ORACLE_HOME
ORACLE_HOME=D:\Oracle\oraclexe\app\oracle\product\11.2.0\server
C:\Users\xxx>set ORACLE_SID
ORACLE_SID=XE
C:\Users\xxx>tnsping brown.maxapex.com:1555/xe
TNS Ping Utility for 32-bit Windows: Version 11.2.0.2.0 - Production on 28-MAY-2
012 16:54:19
Copyright (c) 1997, 2010, Oracle.  All rights reserved.
Used parameter files:
D:\Oracle\oraclexe\app\oracle\product\11.2.0\server\network\admin\sqlnet.ora
Used EZCONNECT adapter to resolve the alias
Attempting to contact (DESCRIPTION=(CONNECT_DATA=(SERVICE_NAME=xe))(ADDRESS=(PRO
TOCOL=TCP)(HOST=173.224.213.131)(PORT=1555)))
TNS-12560: TNS:protocol adapter error
C:\Users\xxx>Also current sql file :
NAMES.DIRECTORY_PATH=(ezconnect, tnsnames)
SQLNET.AUTHENTICATION_SERVICES=(NTS)
SQLNET.EXPIRE_TIME=0
TRACE_FILELEN_CLIENT=100
TRACE_FILENO_CLIENT=3
TRACE_LEVEL_CLIENT=OFF
TRACE_TIMESTAMP_CLIENT=ON
TRACE_UNIQUE_CLIENT=ON
USE_DEDICATED_SERVER=OFF