Yes this is correct and intended.  Image Added
Normally this button would allow you to logout and login online during a watch. But this login and logout method is not supported by netSCADA devices. netSCADA devices use the socalled "digest authorization" method where the web browser and a web server negotiates the protection during the first browser session. This is why a netSCADA device asks for a user and his password during the very first access of a browser. In order to change the user on netSCADA devices then just close the browser window and re-open it to start a new session with the netSCADA device. It will again prompt you for a user and password. | 