If you want to change the duration of the command timeout, the configuration files have to be adjusted.
The duration of the timeout in seconds can be set separately for insert, update, delete (CommandTimeout) and select commands (SelectCommandTimeout).
The default value is usually 30 seconds (default value for ADO.NET).
Add the following lines to eBiss.Service/WinClient.exe.config, e.g. for 90 seconds timeout:
<add key="OrmDefaultCommandTimeoutInSec" value="90" />