Setting up a home network on Comcast cable.

Mr. Perfect · Post by **Mr. Perfect** » Fri Oct 22, 2004 3:11 pm

My parents just switch their provider from Verizon to Comcast, and I'm not quite sure how to get the ol' router to sign into Comcast. Verizon simply had a username and password, and that's all the router needed. Comcast, however, doesn't seem to have a login included with the information packet(not saying there wasn't one origonaly, but I'm not finding one).

When I run IPconfig with the /all command on the machine Comcast hooked up to the modem(got free profesional install), I get two adapters. Adapter 0 is a "PPP Adaptor", which I'm taking to be the modem, and Adaptor 1 is the machine's NIC.

How do I go about setting up the router to login? Do I copy the data from one of the adptors into the router, try to find the hidden login, or do you have to buy more IPs from Comcast in order to setup a network?

SSX-Thunderbird · Post by **SSX-Thunderbird** » Fri Oct 22, 2004 3:39 pm

Most cable networks do not require a login. Just plug the router into the cable modem, and configure it to use DHCP.

CDN_Merlin · Post by **CDN_Merlin** » Fri Oct 22, 2004 5:20 pm

Do a reset on the router, then make sure your cable modem is working, then plug the modem into the router and then your PC's into the router. Router should automatically get the info.

STRESSTEST · Post by **STRESSTEST** » Fri Oct 22, 2004 5:31 pm

I don't have comcast and don't pretend I know what it is they use for the client config if any. But I seem to remember them making the client change the PC name to some long alpah-numeric name. That would have to be enterered into the router.

AceCombat · Post by **AceCombat** » Fri Oct 22, 2004 5:40 pm

my parents have Comcast.

a Microsoft 802.11B Wireless Router

and 2 PC's and 2 Laptops all running smoothly.

this is the basic set of steps to get it all running

1 Hardware reset the modem
2 let it POST
3 allow it to Sync to the line and signal
4 let it accquire a IP
5 plug in router, let it POST
6 hook up router to modem
7 make sure its setup for DHCP
8 configure all computers for automatic DHCP
9 plug in PC's/Laptops
10 surf web

Mr. Perfect · Post by **Mr. Perfect** » Sat Oct 23, 2004 1:41 pm

Excelent! I reset everything, used the name Comcast assigned to the origonal PC and all is well. Thanks guys.

Jeff250 · Post by **Jeff250** » Sat Oct 23, 2004 2:33 pm

Around here (ABQ,NM) you have to clone your PC's MAC address (the PC on which they originally installed the connection) onto your router before they'll assign it an IP address.

STRESSTEST · Post by **STRESSTEST** » Sat Oct 23, 2004 2:35 pm

Mr. Perfect wrote:Excelent! I reset everything, used the name Comcast assigned to the origonal PC and all is well. Thanks guys.

So i was right about that?

Mr. Perfect · Post by **Mr. Perfect** » Sun Oct 24, 2004 12:43 pm

I beleive so. I didn't change any router settings except to make the login name the freaky line they named the PC they hooked up.

I didn't even have to spoof the MAC, though we'll see if they diconnect me later.

STRESSTEST · Post by **STRESSTEST** » Sun Oct 24, 2004 1:25 pm

it was a hunch. I set up this guys cable here several years ago back before Comcast got here. It was Viacom then. That's what we had to do to his router too.

Anwyay, glad you got it all working.

Verran · Post by **Verran** » Sun Oct 24, 2004 1:32 pm

I did the same thing with moving to a router. It worked for awhile without reassigning the MAC address, but shortly after disconnects became commonplace. I called up support and the techie gave me a URL which resets the MAC setup automagically. I don't have it anymore, but if you talk to the right support guy, they may just give it to you, etc. Have fun.

Mr. Perfect · Post by **Mr. Perfect** » Sun Oct 24, 2004 10:01 pm

It reset which MAC? The one the modem used? If so, I could just have the router spoof the MAC they're expecting and get the same result.

Defender · Post by **Defender** » Mon Oct 25, 2004 12:12 pm

I have comcast, and I don't have to have a specific computer name.

I have 2 laptops and a PC wired together to used my BB connect.

All the puters are connected to the router then the router to my modem, then modem to outside line.
As far as I know, no configuration was necessary.

BUBBALOU · Post by **BUBBALOU** » Mon Oct 25, 2004 6:27 pm

The only thing that is required by Comcast on setup is to register the Cable Modem's MAC address. After that anything that is on the WAN side of the modem is your business