Hi Andre,
Do you think avoiding these overlaps could be a solution?
Yes. We have seen issues in previous versions with a similar overlap problem, and our recommendation has always been to "back off" the sync timeout and the application retry logic to something less aggressive, which resolves the problem.
We would still be very interested however to understand the root cause of why it's happening in the first place as there is logic in the MobiLink server to try and avoid this very situation from happening.
Do you know if your load balancer is caching HTTP requests at all?
Regards,
Jeff Albion
SAP Active Global Support