If you can use something, it's useful. Useful things are handy for whatever you're doing. If something is just what you need or you just find it helpful, then it's useful. A hammer is useful in building many things. Coasters are useful if you don't want a coffee table to get stains. College degrees are useful â or necessary â for many careers.
Where is the security key on a comcast modem located? The security key on a Comcast Modem is located next to the serial  number of the unit. Sometimes the serial number is the number used  as a security code if it is not printeâ¦d on the device. (MORE) 1 person found this useful.
Anyone have the Comcast router/gateway. Chaz (CCNAx2 / CCNP) Oct 19, 2014 1:18 PM. I just recently moved into a new place that only offers the new router/gateway. I used to have just the basic Cisco modem that I would run directly into my ASA 5520. Now I have this new router/gateway which I have to have to run the new X1 cable box. Does anyone know how to place the firewall in front of the modem? I want my firewall to have my public IP, not my router/gateway...