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12c Client Applications can Hang or Disconnect (Doc ID 2109671.1)

Last updated on NOVEMBER 20, 2023

Applies to:

Oracle Net Services - Version and later
Information in this document applies to any platform.


This issue was initially reported as a client application hanging after upgrade to 12c client software.

The Oracle Net server trace shows the following:



The server side is reporting a "connection reset by peer" after a few minutes.

#define ECONNRESET      73  /* Connection reset by peer */

The trace of the client showed it was unaware of the disconnection.  The ECONNRESET  was thrown on the underlying transport level.




This was a recent upgrade to the 12c client. 


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