Oracle SQL Developer Failure - Test failed The Network Adapter could not establish the connection

0 votes

Please take note that I modified certain facts for security. However, the issue is still present.

I set up an Oracle 11g database on a server @ herp-devDV.derp.edu, for example. My current Oracle 11g database is located on a server at, let's say, derp-db.derp.edu.

For both herp-devDV.derp.edu and derp-db.derp.edu, I typed the connection name, username, password, hostname, and service name in Oracle SQL Developer. Derp-schema db.derp.edu's is accessible, but not herp-devDV.derp.edu. This is the message I receive:

Failure - Test failed: The Network Adapter could not establish the connection

Details

I have the following information:

  • Port 1521 is not open for either server when I telnet
  • My listener is up and running for both.
  • I can access derp-db.derp.edu on Oracle SQL Developer.
  • Oracle client is on my local machine + Oracle SQL Developer
  • I can remote desktop to both servers

What I have done

  • Googled
  • Stackoverflow
  • Ran stop and start lnrctl commands
  • On herp-devDB.derp.edu I ran lsnrctl status

I received the following output

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1521)))
STATUS of the LISTENER
------------------------
Alias                     LISTENER
Version                   TNSLSNR for 64-bit Windows: Version 11.2.0.1.0 - Production
Start Date                03-JUN-2014 13:37:22
Uptime                    6 days 0 hr. 53 min. 4 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   D:\oracle\product\11.2.0\dbhome_1\network\admin\listener.ora
Listener Log File         d:\oracle\diag\tnslsnr\HERP-DEVDB\listener\alert\log.xml
Listening Endpoints Summary...
  (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\EXTPROC1521ipc)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=HERP-DEVDB.derp.edu)(PORT=1521)))
Services Summary...
Service "CLRExtProc" has 1 instance(s).
  Instance "CLRExtProc", status UNKNOWN, has 1 handler(s) for this service...
Service "HERPDEVDBXDB" has 1 instance(s).
  Instance "herpdevdb", status READY, has 1 handler(s) for this service...
Service "herpdevdb" has 1 instance(s).
  Instance "herpdevdb", status READY, has 1 handler(s) for this service...
The command completed successfully

I then check out my listener.ora and find

  SID_LIST_LISTENER =
  (SID_LIST =
    (SID_DESC =
      (SID_NAME = CLRExtProc)
      (ORACLE_HOME = D:\oracle\product\11.2.0\dbhome_1)
      (PROGRAM = extproc)
      (ENVS = "EXTPROC_DLLS=ONLY:D:\oracle\product\11.2.0\dbhome_1\bin\oraclr11.dll")
    )
  )

LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
      (ADDRESS = (PROTOCOL = TCP)(HOST = HERP-DEVDB.derp.edu)(PORT = 1521))
    )
  )

At this point, I confess I am scratching my head as I don't see anything sticking out and telling me why this should not be working.

The only clue is when I check derp-db.derp.edu and run the command lsnrctl status. Please see excerpt below:

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=DERP-DB.edu)(PORT=1521)))
STATUS of the LISTENER
------------------------
Alias                     LISTENER
Version                   TNSLSNR for 64-bit Windows: Version 11.2.0.3.0 - Production
Start Date                18-MAY-2014 02:19:01
Uptime                    22 days 12 hr. 23 min. 18 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
---etc----

Can someone please help me this?

Sep 12 in Database by Kithuzzz
• 20,660 points
729 views

1 answer to this question.

0 votes

 There were multiple issues. If you encounter this problem, I suggest you look for the following:

  • Make sure your tnsnames.ora is complete and has the databases you wish to connect to
  • Make sure you can tnsping the server you wish to connect to
  • On the server, make sure it will be open on the port you desire with the specific application you are using.

I hope this helps you. 

answered Sep 13 by narikkadan
• 37,660 points

Related Questions In Database

0 votes
0 answers

How do I view the Explain Plan in Oracle Sql developer?

I want to check the query execution ...READ MORE

Aug 19 in Database by Kithuzzz
• 20,660 points
220 views
0 votes
0 answers

Shortcut for changing the editor font size in Oracle SQL Developer

Is there a shortcut in Oracle SQL ...READ MORE

Aug 27 in Database by Kithuzzz
• 20,660 points
92 views
0 votes
0 answers

Windows could not start the SQL Server (MSSQLSERVER) on Local Computer... (error code 3417)

I moved the MSSQL11.MSSQLSERVERMSSQL folder from Program ...READ MORE

Aug 28 in Database by Kithuzzz
• 20,660 points
60 views
0 votes
0 answers

Creating a new database and new connection in Oracle SQL Developer

I've introduced SQL Developer to my framework. ...READ MORE

Aug 12 in Database by Kithuzzz
• 20,660 points
56 views
0 votes
1 answer

ORA-01017 Invalid Username/Password when connecting to 11g database from 9i client

The user and password are DEFINITELY incorrect ...READ MORE

answered Feb 22 in Others by Aditya
• 7,660 points
477 views
0 votes
0 answers

How can I set a custom date time format in Oracle SQL Developer?

Date values are shown in Oracle SQL ...READ MORE

Aug 12 in Database by Kithuzzz
• 20,660 points
104 views
0 votes
0 answers

CLEAR SCREEN - Oracle SQL Developer shortcut?

I was wondering if there was a ...READ MORE

Aug 14 in Database by Kithuzzz
• 20,660 points
299 views
0 votes
1 answer
0 votes
1 answer

Login failed for user 'sa'. The user is not associated with a trusted SQL Server connection. (Microsoft SQL Server, Error: 18452) in sql 2008

Solution Go to Start > Programs > Microsoft SQL Server > Enterprise Manager. Right-click the SQL ...READ MORE

answered Sep 12 in Database by narikkadan
• 37,660 points
172 views
webinar REGISTER FOR FREE WEBINAR X
REGISTER NOW
webinar_success Thank you for registering Join Edureka Meetup community for 100+ Free Webinars each month JOIN MEETUP GROUP