It is a bit different and annoying here for these types of routers/models as you need to physically remove the CF (Compact Flash) and only then, will it enter ROMMON mode (Ctrl + Pause remotely over the console will not do it for us). This means you cannot do this remotely, or at least not without the help of a remote/physical helper.
Step 1.) Power off, router and remove CF Disk Slot#2
Go to the router and remove the slot#2 cover uses your hand or it may help to use a........
It's a great feature to ward off bruteforce but is also annoying because you think you have the wrong password when you can't login.
How to Disable cp hulk for 5 minutes
/usr/local/cpanel/etc/init/stopcphulkd........