Troubleshooting sap hana user store key connection
Common errors that you will get with hdbuserstore key will be related to connection issues. In many cases, it will only be due to the underline user status. In other words, the underline key user status may have changed. Here are common events that a sap hana user comes across at one time or another:
Password has changed,
Password has to be changed on next logging,
Too many failed connection attempts,
User is locked.
Some of those issues have to be solved first and then the key connection will work again. There will be no need to recreate the user store key. New user password or password update will require rebuilding the user store key.