MP161 MFP - Web image monitor

[sandmanmac]

Having difficulty logging into web image monitor.
The username seems to have been changed to "administrator" from the default "admin", and the password must have been changed too.
I logged in under "supervisor", but changing the "administrator" password doesn't take.
Question: should I also be able to change the username here? because the current username (administrator) cannot be changed. I do have the option to change the password, but like I said, it makes no difference when trying to login again.
Strangely, I can change the "supervisor" password.
I've tried SP5-801 (all clear)
There seems to be some security setting made on the machine that I can't figure out, that may be causing this.
Under user tools/System settings/Administrator, when I select "network security level", it says "Privileges are required to use this feature". Is there an SP to reset the security privileges that may help me here?
Thanks in advance.

[aabarnes1]

You must login as 'supervisor' with a blank password, here you can change any admin, user, file manager password. I dont want to sound smart but the full explanation is in the security reference in the manual

[sandmanmac]

Thanks, but I think you missed this line in my post:
"I logged in under "supervisor", but changing the "administrator" password doesn't take."

So "yes" , I am logging in that way, and the change doesn't get saved.....that's what I'm asking.

[Vulkor]

If it doesn't take and you've done a MEMORY Clear. Then I'm thinking Flaky NVRAM?