Call transaction SECSTORE.

Choose "Execute" (F8).

In the entries that are displayed, delete the entry /HMAC_INDEP/RFC_INTERNAL_TICKET_4_TRUSTED_SYSTEM if it is marked with a red traffic light.

In the entries that are shown, delete the entry /HMAC_INDEP/RFC_EXTERNAL_TICKET_4_TRUSTED_SYSTEM if it is marked with a red traffic light. After the deletion of this entry, all the trust relationships to trusted systems (systems that are trusted by the current system) are invalid and, if required, have to be deleted in the current system using transaction SMT1 and then have to be recreated.

In transaction SE37, execute the function module RFC_PING with the destination NONE. If the system displays an error message, execute the function module RFC_PING again; the error message cannot appear a second time in this case.