#Comcast wifi amplifiers how to#
#Comcast wifi amplifiers software#

In this case you will not use the WAN port on any router since the second and the third router (if needed) actually will not be routing anything, they will act as access points in this case. Also the home IP address of the routers themselves should be in the same subnet, e.g. That means only one router may act as a DHCP server to assign IP addresses to all network users (doesn't matter which one) while the other router(s) must have DHCP server disabled. If you need all of your wireless devices to be on the same network due to media sharing, you need to use the daisy chain configuration. You may still use all ports of all routers to provide Internet but the computers may or may not be on the same LAN with the rest of the computers (connected directly or wirelessly) depending on the combination you choose. Look at the images to see which combination better works for you. You may connect all Wi-Fi routers in a daisy chain or to serve separate LAN networks.

You would usually connect a second or even a third Wi-Fi router to your LAN in order to get strong enough signal to cover your residence. This is about configuration of the LAN network following the modification on this device.

#Comcast wifi amplifiers software#

For your Wi-Fi planning I strongly suggest you to use some spectrum analyzing software in order to choose free of interference channels instead of letting the device to do it for you. Removal of the RF module also reduces the unnecessary heat dissipation and will keep the temperature of the device lower. For this unauthorized bandwidth sharing for the Xfinity network, Comcast was sued by some customers. It also used to create additional Xfinity Wi-Fi network to serve external unknown Comcast passing by customers unless you have disabled it. Mine was using both Ch.3 and Ch.7 which occupied almost the whole available band since one standard channel actually overlaps four channels (2+2 adjacent channels). The signal that this device used to create was strong enough to interfere with other routers you may have especially that this type of device occupies 2 different channels at the same time overlapping 8 channels in the 2.4 GHz band hence using much more bandwidth than regular routers do. The main benefit is that there won't be any RF signal generated to already overused 2.4 GHz band.

#Comcast wifi amplifiers how to#

This in case if you know how to log in (default address: 10.0.0.1, default username: 'admin', default password: 'password'.). The device won't even notice that you removed the RF module and it will report on its own web page that your Wi-Fi network is still active. Put the covers back and screw down the screws without the RF module and use the device as a regular modem/router. This is reversible process and you may put everything back the way it was but I sincerely doubt that anyone would do that unless you must return the equipment back to Comcast.

Here in a few steps I will show you how to permanently disable the Wi-Fi section of this modem/router. Unfortunately that solution is not permanent and if you reset the device, you will be on Comcast CSR mercy again. To be honest, some Comcast customers were able to make this device to work as a plain modem (Bridged Mode) thus disabling the Wi-Fi portion and the router just by calling Comcast customer service. Unfortunately Comcast customized firmware has restricted the options that users can do to make changes to such devices by using the usual web interface. Most people complain about very low quality of the wireless portion of this device which also applies for other makes like Technicolor, Cisco, etc. While most people have their home networks configured nicely, when it comes to the cable modem Comcast often ships devices like this which unfortunately cannot be reconfigured easily if at all. This is about modifying my SMC-D3GNV which is a Cable Modem, a Wireless Router and a VOIP telephone adapter.