RFC to RFC: Getting successful result and Dump alternatively (Bean not found on host )

Hi,

We are trying out RFC--> PI -->RFC scenario between two different SAP systems (say S1 and S2). System S2 contains the synchronous RFC module. S1 contains the report program which will be calling out the RFC in S2.

The RFC destination and adapter set up is done and tested successfully from SM59. While executing the report program from S1 system, first time we are getting the desired output. When we execute it the second time it throws this dump:

"Bean <RFC name> not found on host <PI Host name>..."

Now when we execute the program again we get a successful output. But if we execute once again it goes into the same runtime error. So the error and the result are happening alternatively while executing the program.

Now if we stop and start the RFC sender channel each time we execute the program, the dump is not happening.

Has anyone come across this scenario? Please help us in resolving this issue.