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Upgraded to a new AS/400 with V5R2M0 recently. Since upgrading am receiving CPA57EF every 14 minutes on two controllers that the system builds and then deletes. The controllers are named ETHERN** with the ** being a two digit number that continues to increment by one until 99 is used and then restarts with 00. The message contains no useful information, the controllers are created and removed so quickly that you cannot display information on them and QHST contains no useful information. Any assistance on this would be greatly appreciated as this one is driving me crazy, plus actual messages on QSYSOPR needing attention are going unnoticed.