I'm running into the same issue. You press the sequence **# and get prompted for the password which you enter and still the get the "key is not active" There's no way to disable the DHCP client if you cant get into network settings. Any other ideas?
Are you getting this error “Installer User Interface Mode Not Supported. The installer cannot run in this UI mode. To specify the interface mode, use the -i command-line option, followed by the UI mode identifier. The value UI mode identifiers...
The below trick might come handy when you have to add a new node to a cluster but you don't have or is unsure of the security password for the publisher. This procedure has been around for ages.
1) Login into the CLI of the Publisher.