Windows and browser settings are set to english US.But SRC takes somehow German lengage.
Customer using a load-balancer in front of three Service Request Catalog Instances, isapi-plugin for load-balancing as for handing the
Login-Credentials. Load balancer is configured to use sticky sessions, that means sessions with the same id will be forwarded to the same instance
By forcing stickiness the SRC 9.33 language determination will be working fine.
set sticky_session_force=true in the IIS config of LB