Cannot share my cable modem connection

Hi Vivian,

Chweck you cables and where they are conencted.

You will need to make sure that the Comcast modem is providing internet, you can do this by connecting your laptop to it using ethernet directly if it connects to the internet, that will be a good thing.

From your comcast Modem, the ethernet Cable should go to the linksys where it says "WAN". this should give you an internet connection and make your comcast modem communicate with your linksys Router.

Hello.

I'd suggest testing with another computer and the same Ethernet cable to your modem to see if the results are the same and to narrow down which component is the problem.

Was it always slow with this setup or did something change.

Is the Linksys adapter connected via USB ? That would be slower than an internal adapter.

Try updating the Linksys adapter software - Device Manager - rightclick - update driver.

Hope these suggestions help.

It sounds like the LInksys that they replaced was also a router. A router will route packets to multiple pc's that are connected to it. The cable modem just sees the router as 1 pc. When you use a switch, the cable modem will see all of your PC's. and Comcast just allows 1 pc. You will need to buy a router to use more than 1 PC which will be cheaper than using Comcasts Home Networking service which will network up to 4 pcs

Sorry but that seems to be a pretty convoluted explanation. Here is how it should go.
Vonage unit connected to phone line(s) and cable modem. Linksys connected to Vonage box. Computers connected to Linksys.
Ethernet has a length limitation of about 300 feet before you need another switch (hub) or a repeater. Does your wire length exceed this?

Hi Susie
With related to your particular issue it seems like that your broadband modem is not configured for the router. There are basically 2 types of connection. DSL and Cable modem. Verizon, ATT are DSL and comcast other providers give you a normal cable broadband connection. If its comcast make sure the cable from the comcast modem is going to the internet port in the linksys router and also make sure that there is a system connection the linksys router and the cable from the system goes to any of LAN 1, 2, 3 and 4 ports. Then reset your cable modem by using a pin and inserting to the reset hole in the modem. You could use the same step to reset your linksys router as well .If its a verizon or dsl connection you need to put normally your username and password in the router page. here is the link to how to configure linksys for your internet modem.
Here is a video as well on it?
http://in.youtube.com/watch?v=vSAXMO7aNzg

http://tinyurl.com/5tqqhl

Also post the linksys router model. your ISP modem model number and also information on how many systems are wired to the router and wireless and let me know if you need more help.

Thank you
Rakesh
Dell Laptop Expert

If your planning to connect the phone adapter behind a router make sure that the following ports are open/forwarded on the router; UDP ports 5060-5061, UDP ports 16384-32767 take note that 5060 and 5051 one are SIP ports and must be assigned to the IP address of that was assigned to by the router to the adapter or the IP that was manually configured on it.

I found a link that could help you check the setting on your linksys phone adapter

http://www.voipvoip.com/linksys-pap2/

Hope this will help you solve your VOiP problem...

Regards,

That's Ok.

Is your computer connected directly to the cable modem from comcast and what type of connection if it is?(USB or Ethernet/LAN-its look like a telephone chord for slightly larger) or are you using a router?

First thing that you need to check is the actual modem(box provided by comcast normally the brands are; arris, motorola, webstar, samsung or linksys. Make sure the LED light on the front of the modem that say's either Online/Ready/Cable/nternet is stable or solidly lit.

Go to Control Panel and look for Network and Internet or Network and Sharing Center, on the top left hand side you will find tasks, look for manage network connection and check if you have a local area connection, right click the icon and go to Status then Details. Check if you have an IPv4 IP address(58.x.x.x or 271.x.x.x or something like that) if the IPv4 show as 169.254.x.x(where x can be number s from 0 to 254) its an invalid IP or your computer is not getting any valid IP from Comcast.

Yes you can reconnect your router. Whoever did that at Comcast had no business doing that and should be reported and return their equipment back to Comcast asap. It could appear on the bill.

I have a Linksys modem on my Comcast router and it works fine. I don't let them touch it because it uses T-Zones at home service for phone use and it uses a special router to manage it since it has a sim card to run the phone line.

Vonage equipment can be used as well.

I wonder if they were trying to put their phone service onto your system?

Ok, cable (coax) comes in from wall and attaches to modem. Ethernet cable goes from modem to WAN Port of router. You may have to reboot both devices to ensure that your modem (internet service provider) assigns IP address to your router. If PC is close enough, attach new ethernet cable from one of the 4 ports on your router down to your PC's ethernet adapter. (where your modem used to plug into). Router will now assign an IP address to your PC and you should be able to access the www.

Good Luck and let me know if you have any more questions.

run a cable from comcast to the the inter net slot on the linksys make sure the cable color should not a gray one use blue ,yellow,green>and reboot the boxes>and connect another cable from pc to teh one of the ether net port on the linksys u can see 4 choose any one>and check every thing will work>rate me if its help full if its not let me know will help u