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  • Category: ASP.NET

    ORA-03135 connection lost contact .net

    Hi All,

    Front end :
    Back end: Oracle

    I have windows service that deployed in server machine. It automatically stopped by below error and then we have to restart again .

    Please guide me how to resolve ORA-03135 issue. In my connection string I'm using only Username and password alone.

    I think we have to add some more properties in connection string like Validate Connection = , pooling =true.

    Sometimes I'm getting this error as well ORA 03133 end of file on communication channel

    Please help me if anyone met same kind of issue.

    Thanks in advance
  • #761945
    Hello Rajan,

    Causes to occur this error : Server unexpectedly terminated or was forced to terminate. Server timed out the connection.

    You can check if the server session was terminated or check if the timeout parameters are set properly in sqlnet.ora.

    This error is common when connecting remotely when a firewall terminates the connection.

    You can increase the value of the sqlnet.ora expire_time parameter in the sqlnet.ora file

    Hope this will help you.

    Nirav Lalan
    DNS Gold Member
    "Failure is the path of least persistence"

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