F5 Load Balancer - Unable to login to Web Based Interface

I am unable to login to web based interface.is it admin user account?

Can I create a new account through CLI that can be used to access web based interface. can you try this?

root@ve1023(Active)(tmos) create auth user simpson prompt-for-password role admin
changing password for simpson
new password:
confirm password:

root@ve1023(Active)(tmos) list auth user simpson
auth user simpson {
    description "simpson"
    encrypted-password "$1$jjCcKoHz$zVeduDtzbmslgIR.520l7."
    group-id 500
    home-dir "/home/simpson"
    partition Common
    partition-access all
    role admin
    shell none
    user-id 0
}