After "upgrade" to firmware 6..6.1, redynas 4220 does not allow admin login

[readynasrr]

After entry of the user and pw, the system simply returns the loging screen after a few seconds.  Additional attempts using other Adminstrator passwords have the same result.

Netgear RAIDar finds the server on the network, all the discs show up but the same thing occurs with "Admin Page", "Download Logs", and "Diagnostics".  Restart does work from the RAIDar pate. None of the logins work.  The Status is reported as "Healthy".

[StephenB]

Are you trying the username admin?

[readynasrr]

Yes, I have tried the username "admin".

[StephenB]

Does http://nas-ip-address/fwbroker work?