In DocuWare.Administration.exe.Settings make sure that this line is complete. There can be multiple entries so make sure the one with the Organization is the first occurrence in the list.
<AuthenticationServers>
<ConnectionSettings Name="Standard AS" Server="myserver" Port="9000" Organization="XYZ" Local="false" Active="true" System="Central system" />
</AuthenticationServers>
You will find this file in the DocuWare Client folder under C:\Program Files (x86)\DocuWare
Phil Robson
Senior Director Support Americas