[Bug 19767] New: Authenticated RPC client functionality is broken with the rpcrt4 changes from 1.1.25

http://bugs.winehq.org/show_bug.cgi?id=19767

Summary: Authenticated RPC client functionality is broken with
                    the rpcrt4 changes from 1.1.25
           Product: Wine
           Version: 1.1.25
          Platform: PC
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: critical
          Priority: P2
         Component: rpc
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]
                CC: [e-mail]

Since version 1.1.25, authenticated RPC clients do not work anymore. Each RPC
call will always  return an RPC_STATUS of 1728 (RPC protocol error). I will
return with more information which change leads to the current behaviour and
provide a test RPC client server app that allows to reproduce the bug.