3437852 - Error "Name or password is incorrect (repeat logon)" when using a BW or BW4/HANA Connection for Import

• A previously working BW connection is now failing with the error 
  
  "Name or password is incorrect (repeat logon)"
  
  
• A scheduled job may fail with the error
  
  "Name or password is incorrect (repeat logon)"

•  SAP Agent logs may show the error:
  
  "An internal server error occurred in the SAP Analytics Cloud agent: Error: Requested RFC Function is not available. Reason: Unable to query function template, caused by com.sap.conn.jco.JCoException: (103) JCO_ERROR_LOGON_FAILURE: Name or password is incorrect (repeat logon)"
  

• HAR file may show the error: 
  
  "{"result":"{\"status\":\"Error\",\"httpStatus\":\"500\",\"error\":{\"code\":\"INTERNAL_SERVER_ERROR_IN_C4A\",\"rawError\":\"Error: Requested RFC Function is not available. Reason: Unable to query function template, caused by
com.sap.conn.jco.JCoException: (103) JCO_ERROR_LOGON_FAILURE: Name or password is incorrect (repeat logon) ...\",\"params\":[]}}"} "

KBA , LOD-ANA-AQU-BW , Data Acquisition from BW , Problem