JCO connection error:Couldn't create JCOClientConnection for logical System

Hi All,
We are facing a production outage issue.
  We have a Federated Portal Network setup where one of our producer goes down automatically (seems on heavy load).
  On this Producer server we have 3 Web Dynpro applications deployed and default trace is full with JCO connection error   saying Could   not create JCOClientConnection for logical System: CSVMR_WD_MODELDATA_DEST.
We had issue with max allowed JCO connections so we changed the below mentioned parameters for JCO connection settings in portal:
u2022     Minimum value of JCo Pool Size in total = 80
u2022     Minimum value for CPIC_MAX_CONV per SAP Web AS = 320
u2022     Maximum Number JCo Connections = 160
Please let us know if we are missing on some settings, any help in this regard is appreciated.
Regards,
Priyanka

Hi,
As you have already increased the maximum number of connections/pool size but still you are facing this problem. I would suggest you to check the web dynpro application which might not be able to release/disconnect the JCO connection.
Please check this [Thread|How to close a model object connection for Adaptive RFC?; for more details.
Regards
Puneet

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