For majority of other routers such as time warner,comcast,windstream devices.... User:Admin Passassword this is normally the default for nearly any router settings... Wanna boost your wifi strength just buy a wifi extender at a local store and make sure it has two antennas the more the better for signal. Some routers such as linksys have antennas just wrap some aluminum foil around it.. Little trick i also use to boost cell reception