I used to have a motorola modem hooked up to my WNR3500 which served as a wired and wireless network to my home and home office. Comcast voice add on switched out my modem with the combo telephony internet modem/router and now I have problems. I disabled the DHCP on the WNR3500 and had the comcast modem/router hooked into a port on the WNR3500, but not the INTERNET port. Things were ok, but I had no ability to login to my WNR3500.
Since the comcast modem/router has no ability to disable DHCP, it looks like I have to use it to assign IP's on my network, but what I want to do is use the WNR3500 to do the wired and wireless connection routing. Problem is how to set up the WNR3500. I would like to have all on the same IP and subnet, but when I set it up that way, I cant access the WNR3500 anymore even when I set a static ip within the range. I have it set up now with the comcast modem/router LAN on 192.168.123.x and the other computers wired and wireless on a 192.168.1.x. Since doing that, i can log into the WRN3500 but everything is slow slow slow and unreliable. Essentially I want the comcast modem/router to not be a router, but act as a modem as I have everything plugged into the WNR3500 and want to keep it that way.
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I am not a Comcast employee. I am a paying customer just like you! I am an XFINITY Forum Expert and I am here to help. We ask that you post publicly so people with similar questions may benefit. Was your question answered? Mark it as an accepted solution!
I am not a Comcast employee.
Was your question answered? Mark it as a solution!