To access the control panel on a BT Router:
YouTube - How To: Access BT Router Config
For a BT Homehub:
http://bthomehub.home or 192.168.1.254
* Home Hub v2: The default password for Home Hub V2 units is printed on a sticker on the back of the Home Hub, labeled "Admin password"
* Home Hub V1 (old): On older Home Hub v1.0 Home Hubs (for software before v6.2.6E), the default username is 'admin' and the default password is 'admin' (lowercase)
* Home Hub v1 (new) and 1.5: On later versions of the Home Hub v1.x, the default username is admin (lowercase), and the default password is the unique Home Hub serial number (either on the sticker on the back or underneath the hub after the 'S/N:' bit).
Notes: The password is case-sensitive. The first three letters are normally "CP0" (number zero). Ignore the bit in brackets after the serial number. You are normally prompted to change this password.