Note that I do not offer technical support of any kind and all my responses will be voluntary. You can change your router’s MAC address by accessing the admin panel via web browser, network settings, or firmware. NOTE: If you still cannot change your IP address, let me know. Turn on the router, wait till it boots up and check your IP address.Wait for 2 minutes and turn on the Comcast modem (yes, I know 20 seconds is usually enough, but 100 seconds more will not hurt.).In some cases, you'll have to reset the Comcast modem using a paper clip or tip of pen if a regular power cycle doesn't work. Change the last digit of the MAC address.

Navigate to the MAC address section and to the WAN MAC address.Using DHCP with manual address: Choose this if your ISP uses a DHCP. If you mess up your modem or router, do at your own risk. DHCP: Choose this if you receive your IP address automatically from your service provider. The real solution to this is to change the MAC address of your WAN device in your router configuration:ĭISCLAIMER: The solution involves changing your MAC address. Navigate to the wide-area network (WAN) settings page or a similar settings page (each router may be different.) Once there, look for an option to change the MAC address. Comcast insists that your IP is changed, but a quick check of my IP address shows that my IP is still the same. Unfortunately, this doesn't work most of the time when you're behind a router (Linksys WRT-54G in my case). Some may require you to call them, others to visit an online activation page. Turn on the Comcast modem, wait for a minute and then turn on the router. At this point, most internet providers will require you to activate the new device using the information you collected in step 1.Wait for 20 seconds (or upto 2 minutes).Turn off your router and Comcast modem.For some reason, if you need to change your external IP address, Comcast support will tell you to do a power cycle which is basically:

Change mac address arris cable modem