An administrator user may accidentally modify the allowed login modes via the Project Preferences > Project Defaults > Security, which prevents users login Strategy Web 9.0.x.
For example, in a project which is only configured to use Standard Authentication Mode, when the login mode is changed to use Windows Authentication accidentally via the Project Preferences > Project Defaults > Security, no users are able to login Strategy Web. The following error appears when users login a project in Strategy Web:
Error in login You cannot login as Windows User. Please ask the Strategy Server Administrator to link this Windows User account to a Strategy Server User or ask them to set the Web Server properly.
By choosing the Standard Authentication Mode, selecting the option "Override project login mode settings" and saving the changes, the Standard Authentication Mode will be available for all users in Strategy Web, as shown in the image below:
