KB442042: 10.x MicroStrategy Web Login page displays “Login Failure” error with &connMode=1 parameter in URL when Windows Authentication is default authentication method

SYMPTOM
When Windows authentication is set to default and connect to a project using URL API, if the parameter &connMode=1 is appended then there is a login error on the login screen.

STEPS TO REPRODUCE

1. Go to the Strategy Admin Page
2. Enable Windows and Standard Authentication
3. Set Windows as Default Authentication
4. Enable setting, "Show login page after user logout."
5. Use URL API to connect to project
6. Append &connMode=1 to URL API to prompt standard login (see below)

EG:
http://ServerName/Strategy/asp/Main.aspx?evt=3010&src=Main.aspx.3010&Server=DB4&Project=Strategy+Tutorial&Port=0&connMode=1
CAUSE
The login error only shows when the login defaults to windows authentication, where the windows login credentials that are passed, do not match with the connection mode specified in the URL.
This triggers the login failure as expected and then the login page where the user can then log in with the correct credentials.
 
ACTION
Currently, this issue is still being reviewed for feasibility by our Technology team, and it is not scoped for any upcoming scheduled Strategy release.
WORKAROUND
Disabling the setting to “Show Login Page after Logout” will prevent the login page from displaying after logout which in turn prevents the error from being displayed on that page.
 
THIRD PARTY SOFTWARE INSTALLATION WARNING:
The third-party product(s) discussed in this technical note is manufactured by vendors independent of Strategy. Strategy makes no warranty, express, implied or otherwise, regarding this product, including its performance or reliability.
 
Article Reference Number: KB442042