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ORA-03114: not connected to ORACLE

francesco borgoglioOct 2 2025 — edited Oct 2 2025

Hi.
I have the following problem.
When I try to connect to an Oracle Database (Version 19.3.0.0.0) on Windows Server 2022, the first connection works but, as soon as I try the first command, I receive the following error:

SQL> select * from v$version;
ERROR:
ORA-03114: not connected to ORACLE

Checking on server by using Whireshark I can see a Connection Reset (RST).

What could be the problem of this reset?

Thank You very much for your support.

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Added on Oct 2 2025
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