Any chance there is a local firewall block to the user authentication host server?

I have a similar problem at a customer and we first had to resolve the local firewall issue. The super old iSeries Navigator works, but ACS will not. Weird.

Jim Oberholtzer
Agile Technology Architects
From: MIDRANGE-L <midrange-l-bounces@xxxxxxxxxxxxxxxxxx> on behalf of David Gibbs via MIDRANGE-L <midrange-l@xxxxxxxxxxxxxxxxxx>
Date: Wednesday, March 25, 2026 at 10:07 AM
To: Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxxxxxxxx>
Cc: David Gibbs <david@xxxxxxxxxxxx>
Subject: Can't log in to pub400 with iAcs 1.1.9.11

Folks:

I’ve got a weird problem … I’m trying to log in to pub400 using iAcs, but get an invalid user id or password error every time.

If I telnet into pub400.com <http://pub400.com/> I can log in fine.

I’m using Eclipse Adoptium Java 25.0.2 on my Silicon Macbook Pro with MacOS 26.4.

Any ideas on what might be going wrong with iACS?

Thanks!

David


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