NETGEAR is aware of a growing number of phone and online scams. To learn how to stay safe click here.

Forum Discussion

whynotme's avatar
whynotme
Aspirant
Jul 26, 2019

Access Points not being assigned IP address

Tried to replace my Xfinity 1Gb gateway with this new CM1150V but none of my 3 access points are getting an ip address.  I've tried it with a Netgear router AC1700 and 2 different Ruckus Wireless ap's, an R710 and R730.  My laptop is hardwired to the new modem and that works fine.  Something about this modem won't assign ip addresses to routers/access points.  Anyone have any thoughts before I return this?  Having put the Xfinity gateway back in the network, the ap's and Netgear router all pull ip addresses just fine.

 

Thank you

6 Replies

  • antinode's avatar
    antinode
    Guru
    Jul 27, 2019

    > Tried to replace my Xfinity 1Gb gateway with this new CM1150V [...]

     

       Why?  Was there some actual problem which you were trying to solve?

     

       What, exactly, is your "my Xfinity 1Gb gateway"?  If it's some kind
    of (cable-TV-type) modem+router, and you replaced it with a simple
    modem, then I'd expect many things not to work as before (if at all).

    > [...] Something about this modem won't assign ip addresses to
    > routers/access points. [...]

     

       Yes. The fact that it's a modem, not a router with a DHCP server.

     

    > [...] the ap's and Netgear router [...]

     

       What, exactly, is your "Netgear router"?  Is it configured as a
    router, or as a wireless access point?

    • whynotme's avatar
      whynotme
      Aspirant
      Jul 28, 2019

      I was trying to replace my rented Xfinity modem with an owned device to remove the $13 modem rental fee.  The Xfinity is model TG3482G.  I was running in bridge mode, so the router function was turned off.

       

      Can this modem not act as DHCP server?

       

       

       

       

      • antinode's avatar
        antinode
        Guru
        Jul 28, 2019

        > I was trying to replace my rented Xfinity modem [...]

         

        > [...] TG3482G [...]

         

           An ARRIS TG3482G is a "gateway" (modem+router), not a simple modem.

         

        > [...] I was running in bridge mode, so the router function was turned
        > off. [...]

         

           If the router functions of the TG3482G were disabled, then I'd expect
        its DHCP server to be disabled.  If all you did was disable its
        wireless-network radios, then its "router function" was not "turned
        off".

         

        > Can this modem not act as DHCP server?

         

           Generally, a _modem_ does not include a DHCP server.  A _gateway_
        (modem+router) or a _router_ will include a DHCP server.  A Netgear
        model "CMxxxx" is a modem, not a gateway, so no DHCP server.  (Also, no
        other router functions.)