We use those switches and have the 2838 adapters.  The lines are set for
auto speed and auto duplex.  We have no problems.  Our switches are set to
auto as well.  I would check your cable run.  Perhaps run a long patch
directly from your AS400 into your switch, if possible, for testing.  Our
line is also configured to be on-line at IPL.  Good Luck and contact me off
line if you would like.

Christopher K. Bipes      mailto:ChrisB@Cross-Check.com
Operations & Network Mgr  mailto:Chris_Bipes@Yahoo.com
CrossCheck, Inc.                  http://www.cross-check.com
6119 State Farm Drive     Phone: 707 586-0551 x 1102
Rohnert Park CA  94928    Fax: 707 586-1884


-----Original Message-----
From: Marc Rauzier [mailto:marc.rauzier@netcourrier.com]
Sent: Friday, February 22, 2002 12:05 AM
To: midrange-l@midrange.com
Subject: V4R5, 2838 and 3Com


Hello everybody

Does someone know about physical network problems between 2838 ethernet
cards running on V4R5 systems and 3Com 3300 model switches ?

Sometimes, when the ethernet line is varied on after an IPL, it comes online
but no cummunication is possible.

FYI : we have tried all the combinations of speed/duplex auto-negociated or
not.

--
Cordialement/Best regards
Marc Rauzier

Opinions I stated here are my own.
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