Web interface log in not working

newbie here, when I have logged in the web Truenas website to go to my dashboard my user name was always trunas_admin. and password did not change. now it will not recognize my password and i can not access.

now i can log into my NAS storage though the computer as net work. can access all files.

i tried to change the password by going into the NAS computer and hitting #4 but this has not worked. changes the password on the network but not on the truenas website/ip address.

hope this makes sense.

any other ideas? help??