since 3/12 it looks like that my API requests to the eBay API from the host where my application is running are hard blocked. When I run the same code on another machine everything works fine.
All eBay APIs are affected (Shopping API via REST as well as Trading API via SOAP). My applications run on a shared environment since a couple of years so I think due to some other activities from other users on the same IP pool I got on a blacklist? How do I get removed from the blacklist again?