DC396004 Protocol error, invalid packet, reason = 4

Products

• IDMS

Issue/Introduction

Getting these error messages:

DC396004 V20 T1192750 Protocol error, invalid packet, reason = 4 IDMSJSRV: JPAC*ERR 1E79C700 0D0A0D0A 0D0A0D0A 0D0A0D0A 0D0A0D0A 0D0A0D0A

What can cause this error?

Environment

Release: All supported releases.
Component: IDMS Server.

Cause

The error indicates the IDMS Server task received a packet with a bad packet id. The id in the first 4 characters should be X'CACACACA'. The text that follows the error message will dump the packet data, in the above example the packet id has X'0D0A0D0A'.

Resolution

This error is usually caused by running an old version of the IDMS Server client software, from prior to  release 17.0.