 How To Change Ip Address With Comcast
If you have a router installed after your Comcast modem, then it is easy to get the Comcast system to dynamically generate a new IP address. If you do not have a router, I strongly suggest you get one to have an extra firewall between your computer and the Internet. Most IP addresses given out by the Comcast DHCP system are in a leased mode. This means that if your modem is turned off for several days or more, the IP address goes back to a group of IP addresses to be automatically reassigned to other users. Turning off the modem for short periods of time will not reset the leased IP address because the modem is assigned the IP address based on the original computer's MAC address. Every type of networking hardware has a unique code that is the Media Access Control address or MAC address for short. Router's also have a MAC address. Once this MAC address is synced up with the cable modem, the Comcast DHCP system assigns the IP address to the online outlet. However, if the MAC address is changed, the Comcast DHCP system assigns a new IP address to the online outlet, because it thinks it is a different location. Each computer, with a network card, also has unique MAC addresses. If a person were to hook up a different computer directly to the cable modem, it is likely that a new IP address would be assigned by powering down and then up again the cable modem. However, with a router it is much easier to assign a new MAC address to the router itself. Most routers today have what is referred to as 'clone the MAC address'. This feature allows the user to make the router look like any one of the computers that reside on the premises. Simply logging into the router through a web browser by typing http://192.168.1.1 for Linksys or do a search for Router IP Address to find your particular brand. Then type in the login name and password. Hopefully you changed these for security purposes (and wrote them down) when you installed them from the defaults. This allows you to login and set up the router using the internal configuration program. Find the area where you can clone your MAC address and perform a clone to a new MAC address. Before you clone the MAC address, write it down. This is so you can put it back to the original if you need to. Once the cloning is done, then you can try a release IP address and renew IP address in the router's programming structure. This sends a release the lease to the Comcast DHCP and then renews with a new IP address. Suggest powering down the cable modem, router, and computer at this time. Then re-power everything back up and you should have a new IP address.
Last setp is to check your ip address: What Is My IP Address? - IP Address Lookup, Bandwidth Speed Test, IP Info, plus more
Good luck.
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