User is getting locked very often, and showing wrong credentials in the log

Hi,

We have created a custom jsp page for login in Thingworx.

If the user enters wrong credentials 5 times within 5 mins it's geeing locked and will be unlocked after 5 mins, but the same user wants to login through the jsp Page it's giving wrong credentials even with valid user name and password.

But in the composer user will be active and unlocked and they can be logged to the composer  but not into the organization. Is there any specific reason for this issue. Please kindly let me know the solution.