If you want to lock CWP login only for your IP address now you can do that by creating a file named "/usr/local/cwp/.conf/.access_root" and by adding your IP address in it.
Create a File and add your IP's in it (one per line)
/usr/local/cwp/.conf/.access_root
eg.
123.123.123.123
121.121.121.121
To disable Limited access per IP address simply delete the file
/usr/local/cwp/.conf/.access_root