UI login attempts fail with "Login failed. Please try again"

Root cause 1: This is a local account and it does not exist (case sensitive)

To confirm: 

Login with a system user into the UI, click on Administration > Users. If the account list not listed in this page, the root cause is confirmed
Open an ssh session (tideway) and execute "tw_listusers --filter <user>". If it does not return anything, the root cause is confirmed.

Solution: 

Add the missing user:

• • • via the UI with this procedure
    • via the tw_adduser utility (See the documentation): 

1. 1. 1. 1. ssh to the appliance terminal
         2. run the following command line to create the local user "John" and add him to the groups "discovery" and "admin":

$TIDEWAY/bin/tw_adduser --groups=discovery,admin John

Root cause 2: This is a local account and it is not active (blocked or disabled or locked)

To confirm: 

Open an ssh session (tideway) and execute "tw_listusers --filter <user>". If the status is "USER_STATE_BLOCKED" or "USER_STATE_DISABLED" or "USER_STATE_LOCKED", the root cause is confirmed.

Solution: Execute the following command line: "tw_upduser --active <user>"

Root cause 3: This is a local account and the password is incorrect (case sensitive, keyboard issues, password lost/changed)

To confirm: 

Open an ssh session (tideway) and execute "tw_query -u <user> -p <passwordInClear> 'search Host'". If it fails while the root causes above are eliminated, the root cause 3 is confirmed.

Solution:

Reset the password with this procedure or this command line

Root cause 4: This is an LDAP account and the LDAP integration does not work

To confirm: 

• • Login with a local user (create/activate it if needed with the steps from the solutions to Root Cause 1 and 2).
    • If LDAP is disabled in Administrator > LDAP, the root cause is confirmed.
    • If there are errors in this page, the root cause is possible.
    • If the button "Test Authentication" does not work for the LDAP user account, the root cause is possible
  • Search for the error message observed while checking the root cause in Discovery's Knowledge Base.

Root cause 5: This is an SSO account and the SSO integration does not work

To confirm: Bypasss the RSSO/HSSO login banner, login as a local user like system and review Administration > SSO