By default the Easysoft ODBC-ODBC Bridge Server is installed as a service which runs in the system account - this is usual for NT system services. If you elect to run the ODBC-ODBC Bridge Server under a named account that account may not have privilege to become another user. Certain pages in the ODBC-ODBC Bridge HTTP administrator are protected using HTTP authentication and when you login, the HTTP server temporarily becomes the user you log in as. If the ODBC-ODBC Bridge Server does not have privilege to become that user you will not be able to login to those pages. A solution is to disable HTTP authentication in the ODBC-ODBC Bridge HTTP Server by either:
and change it to the text "disabled" (omit the quotes).
One imagines that the reason you want to run the ODBC-ODBC Bridge Server under a named account is for added security but in fact you are opening up security holes doing this. Firstly, anyone with the ODBC-ODBC Bridge client can now connect to your data and secondly, to administer the ODBC-ODBC Bridge Server via HTTP you will have to disable HTTP authentication. Disabling HTTP authentication means anyone can change the ODBC-ODBC Bridge Server settings.
Easysoft recommend you run the ODBC-ODBC Bridge Server in the system account.