Computer network question

[Cyclonepride]

Just switched to Mediacom for the faster internet, and have the cable modem going out to a router to hook up two PC's and my Xbox 360. My computer works fine, but my Xbox won't connect to Live now.

I seem to remember that when I first connected my old modem, I had to go in and allow an exception for the Xbox to pass through. That modem had a disc though, and I could use that to get into the setup on it. The cable modem, I don't really know... any advice?

 

[aauummm]

Just switched to Mediacom for the faster internet, and have the cable modem going out to a router to hook up two PC's and my Xbox 360. My computer works fine, but my Xbox won't connect to Live now.

I seem to remember that when I first connected my old modem, I had to go in and allow an exception for the Xbox to pass through. That modem had a disc though, and I could use that to get into the setup on it. The cable modem, I don't really know... any advice?

You can go to the modem at 192.168.2.1 and fiddle with the settings on it. Good luck. Whoops, that's the router address. I'll try to find the modem address.

 

[Cyclonepride]

Fiddle with the settings from the xbox, or from the PC? Definitely appreciate the help!

 

[aauummm]

revised post

Fiddle with the settings from the xbox, or from the PC? Definitely appreciate the help!

You may have to make an exception for the xbox as your computers are getting through OK. You'll have to have a MAC address or IP address of the xbox to enter into the router. That may work or it might be another totally different problem. My Mediacom modem IP address is 192.168.100.1. You can go directly to the modem and see if there are any places to add in an exception for the xbox. There are no places that I can see to add an exception in the modem. That kind of leaves you the option of playing with the router settings.

 

[CycloneErik]

I don't think the world's 12-year-olds are exactly shaking in their boots thinking this problem will get solved.........

 

[Cyclonepride]

I don't think the world's 12-year-olds are exactly shaking in their boots thinking this problem will get solved.........

Here's where I apologize for making fun of you during your several hour saga of not being able to get on xbox live:wink:

 

[CycloneErik]

Here's where I apologize for making fun of you during your several hour saga of not being able to get on xbox live:wink:

It's all good. Reaping and sowing:smile:

 

[Cyclonepride]

From searching around, it sounds like I need to contact Mediacom with the MAC address so that they can allow it through.

 

[CycloneErik]

That's what I've heard. I'll need to do that to keep my addiction alive myself.

 

[TykeClone]

From searching around, it sounds like I need to contact Mediacom with the MAC address so that they can allow it through.

Do you have a router behind the mediacom router?

You should be able to clone an "allowed" MAC address on the "out" side of the router and then plug whatever you want on the inside of the router.

 

[Cyclonepride]

Do you have a router behind the mediacom router?

You should be able to clone an "allowed" MAC address on the "out" side of the router and then plug whatever you want on the inside of the router.

This is my problem- I don't. Finally called Mediacom, and since I don't have the router, the first machine turned on defined the IP address that was recognized. I'm taking the switch back and getting a router instead.

 

[CyFever]

Let us know if you've got this solved. If not, what brand/model of equipment are you using. Is it the same equipment you were using previously with another ISP? And it was working at that time?

The first post indicated a router but then the last one said you didn't.

I'm guessing you had a switch originally. A switch operates at the data link layer and sends traffic using hardware (MAC) addresses. Most cable companies filter by MAC address, especially the cable modem. That way they can prevent someone having cable but no internet access from just hooking up a cable modem and getting internet.

What you need is a router operating at the network layer sending traffic using logical (IP) addresses. It will (can) define private IP addressing for your internal network and keep track of where all that traffic goes. To the cable company you will appear to have only one connected device.

The default configuration from any router should work along with default OS settings unless you have some special needs you want to address and it doesn't sound like you do. The once caveat is that you should never leave the default router security settings, which is no security! At a minimum, change the administrator password.

 

[Cyclonepride]

Let us know if you've got this solved. If not, what brand/model of equipment are you using. Is it the same equipment you were using previously with another ISP? And it was working at that time?

The first post indicated a router but then the last one said you didn't.

I'm guessing you had a switch originally. A switch operates at the data link layer and sends traffic using hardware (MAC) addresses. Most cable companies filter by MAC address, especially the cable modem. That way they can prevent someone having cable but no internet access from just hooking up a cable modem and getting internet.

What you need is a router operating at the network layer sending traffic using logical (IP) addresses. It will (can) define private IP addressing for your internal network and keep track of where all that traffic goes. To the cable company you will appear to have only one connected device.

The default configuration from any router should work along with default OS settings unless you have some special needs you want to address and it doesn't sound like you do. The once caveat is that you should never leave the default router security settings, which is no security! At a minimum, change the administrator password.

Yes, I did have a switch rather than a router, so I went and bought a router with a 4 port switch built in, and everything is working great now. I appreciate the help!