SQL Developer database connection keeps closing

Posted on 2014-03-18
Last Modified: 2014-05-04
I use SQL Developer connected to my companies database over vpn.  It seems like a database connection must be reconnected if there is no activity in 30 minutes, it drives me crazy!  I can leave Toad for SQL Server connections open for hours without having to reconnect.

Are there any settings I can change in SQL Developer to extent the connection time?

Also I use connection type 'Basic' and do not have the Oracle Client installed on my desktop.

Question by:gantone1
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LVL 38

Expert Comment

by:Gerwin Jansen, EE MVE
ID: 39938236
You could turning DBMS output on and setting the polling frequency to once every minute or so.
LVL 29

Expert Comment

ID: 39938252
1) Check out if the database is using resource manager and "disconnecting" you.
2) Check out if listener is disconnecting you, check SQLNET.EXPIRE_TIME in the sqlnet.ora file at the server.
LVL 37

Expert Comment

by:Geert Gruwez
ID: 39939141
check if the firewall disconnects idle connections after 30 minutes
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LVL 12

Expert Comment

by:Praveen Kumar Chandrashekatr
ID: 39942331
As MikeOM mentioned check if you any resource manager configured in which ideal timeout as set which is logging you off or the Firewall is enabled.

Author Comment

ID: 39973558
Per our IT staff I have Windows Firewall turned off and we use Mcaffee VirusScan Enterprise + AntiSpyware Enterprise 8.8.

Is there a firewall within MCaffee and if so how is that configured?
LVL 12

Expert Comment

by:Praveen Kumar Chandrashekatr
ID: 39974688
I think McAfee may be blocking the port which you are trying to access or it would have set some timeout , can you check with your IT team the same.  

Also you can crosscheck the same by disabling the McAfee software and connecting to database.

Author Comment

ID: 39992358
I disabled MCaffee and am still getting database timeout.  Maybe this is within our VPN?
LVL 38

Accepted Solution

Gerwin Jansen, EE MVE earned 500 total points
ID: 39992799
@gantone1 - You've only replied to the firewall comments give, not the other ones. Did you try the other suggestions as well?

Author Closing Comment

ID: 40041189
Could not get it to work, switched to Toad and it does much better job re-connecting so I can live with disconnect.

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