ABAP Cache Refresh: PIAPPLUSER gets locked

Hi,

well we are a little desperate. Concerning ABAP-Cache resfresh we already read in forum and this guide on how to handle XI-Cache (https://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/1a69ea11-0d01-0010-fa80-b47a79301290)

But the Cache don't get refreshed at all and the PIAPPLUSER gets locked even though we changed/overwrite all passwords on the needed places.

By the way: the SLDCHECK gives me no Business-Systems via LCR_LIST_BUSINESS_SYSTEMS even though there are some and also the technical and business system for Integration server is maintained correctly. When getting Http-Screen for SLD we get a login mask where i remember that this has not been the case before - right?!

Can somebody help. We have no clue what else to try!

br