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Problem in connecting to SAP via RFC

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Hi all,

I'm running a NON-SAP application on AS/400 (V5R3M0). After connecting successfull to SAP(Kernel 640) via RFC the data exchange is working well, but after app. 1h the connection drops and I get an error in my program. What I've foud out so far, is that the error is raised in module RFC_MT, funktion rfcOpenHooked, line 84. Unfortunaltely this funktion is located in the serviceprogram LIBRFC, so I have got no sourcecode.

The problem raised after upgrading the SAP system to actual version and upgrading the AS/400 to V5R3M0.

I've implemented the actual SDK to my application.

Thanks for help!

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Active Contributor
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Hello Marco,

First welcome to the SDN Forums.

I hope that you have opened a OSS Message on this topic because they can help definitely better at this point.