Knowledge Base

Compaq Insight Manager may Cause TN3270 Event ID 903

Article ID: 161047

Article Last Modified on 5/13/2005

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This article was previously published under Q161047

SYMPTOMS

The Windows NT Event Viewer Application log of a Windows NT Server running the TN3270 service may show repeated Event ID 903s. The event description is as follows:

Windows API ReadFileEx failed with error code 233L (No process is on the
other end of the pipe.) in function TCPRecv.

EXPLANATION
An unexpected error was encountered on an Windows API call.

ACTION
Record message and contact technical support.

The TNServer traces will show a TN session initiated, but the response, DO TERM TYPE, finds nothing to receive the message.

CAUSE

This can be caused by Compaq Insight Manager's use of the standard TCP/IP (Telnet) port 23.

RESOLUTION

The TN3270 service can be configured to use a different port by editing the <ntroot>\SYSTEM32\DRIVERS\ETC\SERVICES. For example, to configure the TN3270 service to use Port 24, add the following line and restart the TN3270 service: telnet 23/tcp tn3270 24/tcp # TN3270 Service NOTE: This also requires the TN clients to be configured to use this same port.

Keywords: KB161047