Re: Cox cable and routers/switches.

On Sat, 9 May 2009 23:04:50 -0700, "Austin Powers"
<(E-Mail Removed)> wrote:

>I have an Arris TN602G cable modem supplied to my by my digital cable
>company (Cox).
>
>I have the following devices, which all support access to the Internet.:
>
>Dell PC running Windows XP Professional w/SP3
>iMac with OS X 10.5.6
>Apple Time Capsule
>Wii
>Sony PlayStation3
>Sony XBR9 TV
>
>My house is wired with Cat6 cable which all works perfectly.
>
>When I have either my Netgear GS105 switch or Netgear FM114P router
>connected to my cable modem and routing signal through the Cat6 to my house,
>then IF the cable modem is connected to the switch/router NONE of my devices
>can see each other.
>
>If I do not have the cable modem connected to the switch/router then ALL of
>the devices CAN see each other.
>
>I have rest my cable modem and the router (but obviously not the switch).
>
>I have switched everything off and started by switching everything on,
>working from the wall outwards (cable modem - switch - computers) and I
>still get the same result.
>
>The only answer I get from my cable company is that I need to speak to:
>Microsoft (for Windows support); Apple (for OS X support); Netgear (for the
>switch/router support); Sony (for the PlayStation3/ TV support); and
>Nintendo (for the Wii) support.
>
>Can this be anything other than a problem with the Cable company? It's
>late, I'm tired, this problem has been going on for over 4 months and I'm
>sure that I have missed out some of the many, many things that I have
>tried/done.
>

Make a note of the IP address and Default gateway of each of your
networked devices (PC's, game systems, etc) with the cable modem
disconnected (every device can see the other devices), and then
compare those addresses/gateways with what you see when the cable
modem is connected (devices cannot see each other). I think you'll
find that your devices have public IP's versus private IP's, and if
so, it's a good bet that you've connected your router to the cable
modem improperly. Be sure the router's WAN port is connected to the
cable modem. You might have connected one of the router's LAN ports to
the modem by mistake.