If a user signs on to Web Admin and their password has expired they are given a message as shown below that indicates that the password is expired but no prompt to change the password.
Error: Invalid Credentials TSS7100E 010 J=LDAPR12 A=ADMIN T=00000000 F=UNICNTR - New Password Missing
From the password field line you would enter OLDPASSWORD/NEWPASSWORD and the old password will be verified. If the old password is correct then the password will be changed to the new password as shown below:
User Name: ADMIN