Hello Joyce,
I don't any clear answers from SAP, just a redirect to already know SAP Note about RFC's.
After search and test for a solution I only get the conclusion to change all that RFC's that are not setup as indicated by SAP.
To change that RFC's you need before fix SAPOSS from OSS1 settings, after that, just re-generate the others from SDCC/SDCCN, RTCCTOOL, etc...
Any one found that in some systems is not possible to setup server name "oss001.wdf.sap.corp" due to short long of field in OSS1 ?
Regards,