I have a Motorola SURFboard wireless router attached to a Motorola wired modem. These were set up a while ago by our internet provider (time warner cable) But they never gave us a password and its an unsecured network. So all our neighbors are all stealing our internet and slowing it down. We now want to add a password/security so we can keep our internet for ourselves. How do I go about adding a password to my router?