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Pete51's avatar
Pete51
Aspirant
Aug 02, 2017

C3000 N300 modem/router won't allow 2 wired lan connections

I have a wired lan connection for a security camera DVR on my C3000 cable modem/router. When I tired to add a Liftmaster internet gateway garage door control (also wired) to the second ethernet port, the router would not recognize it.  So I disconnected the DVR and the gateway worked fine.  When I reconnected the DVR the gateway quit working.  Either system works normally alone but the router will not recognize both systems.  Any suggestions?

3 Replies

  • DarrenM's avatar
    DarrenM
    Sr. NETGEAR Moderator

    Hello Pete51

     

    Could be some type of overlapping happening have you reserved IP address for each system and done all the proper port forwarding?

     

    DarrenM

    • Pete51's avatar
      Pete51
      Aspirant

      That was my guess too but the router wouldn't save the changes.  I called netgear tech support and after nearly three hours of trying they told me to just buy a new router.  I did that and the new Netgear router was defective. I've returned it and will never buy another Netgear product. The products don't work and their support is worthless

      • vkdelta's avatar
        vkdelta
        NETGEAR Employee Retired

        are you with SPECTRUM (charter/TimeWarner or BrightHouse) isp?