TNS-00534: Failed to grant connection ownership to child

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                          when I tried to connect to my oracle instance with sql developer, I see this error in logs

    TNS-12518: TNS:listener could not hand off client connection
     TNS-12560: TNS:protocol adapter error
      TNS-00534: Failed to grant connection ownership to child
       64-bit Windows Error: 10022: Unknown error

Can someone give me a poit how to solve this error. Note I have 64b client installed.
                        

Asked by Petr Kostroun (121 rep)

Apr 11, 2021, 09:57 PM
Last activity: Apr 22, 2025, 09:03 PM

TNS-00534: Failed to grant connection ownership to child

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