When try to connect Jasper Studio to Jasper server, encounter error 401. This happens to jasperadmin user, and the password is right as the same username/password can login jasper web UI and proper roles are assigned to jasperadmin id.
Release : 17.3
Component : SDM - Reporting/BOXI/JasperSoft
Follow these steps
--login to Jasper web UI as "superuser". The default password is "superuser"
--change the password for user "jasperadmin" to "abcd" and save
--now use the new password on Jasper Studio and confirm it works
--login Jasper web UI again as superuser and change jasperadmin's password back to what ever it was before
--confiirm jasperadmin can connect from Jasper Studio using the original password