I received a RCA modem, model: DHG535-2 from comcast for internet and phone. I have a NetgearWGR614 v.6. My modem is connected to the internet via cable. The USB has never been used on my modem. When the modem is connected to my computer via ethernet using CAT5 I get great internet at 100Mbps. When I try to use my router I continually get told that I have no connection. I have reinstalled my Netgear software and set up the hardware as they directed (again!) There is no on/off button on the modem. It has to be unplugged. I even took the battery out! Does this router not work w/this modem? I've never had problems w/this router before. I have even used comcast service in the past, but it was a different brand of modem I was given-it worked then fine.
Your modem has already registered itself with the MAC address of your computer, so it doesn't recognize the MAC of your router. In cases like this you have two options:
Configure your router to clone the MAC of your computer
Connect the router to your modem and do a soft reset so the modem registers itself with the MAC of your router.
Clone MAC - Go to your routers Admin web interface and on the main page you should see the "Router MAC Address" section at the bottom. Select "Use Computer MAC Address" and click "Apply" and your router should reboot and you'll be back in business.
Soft Reset -
Plug the modem into the router via the ethernet cable then do a soft
To do a soft reset, do the following:
pull the power cord from the modem
count to 5
hold down the Reset EMR button on the modem
plug back in the power
count to 30 while holding the Reset EMR button (the modem should be blinking a lot)
release the Reset EMR button and see what happens.
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The trick about all this is that the software does not configure the computer, but the modem. So once it has been configured through a computer then plugged to a router, any computer plugged to the said router will have access to the Internet.
The whole process of installing/configuring will happen if you replace the old modem and/or plug a new computer directly to the modem.
My RCA DCM425C from Comcast had the same problem when I came home Saturday, 11/14/09 (coincidentally the same day you posted). Had been working fine - cable TV still works fine including On Demand, etc. The Internet light was blinking. Occasionally I'd see it try to work from one light to three or four, but it always came back to one. Called Comcast, they said their side showed "no signal". Sent out a tech today. He replaced the cable modem, reprovisioned it (I guess if I had a backup ready I could have done the provisioning over the phone maybe?)), everything's great. Lasted about a year and a half. When I logged in via http://192.168.100.1, it said it was still in Step 1 of 5 ("Tuning"), and the logs showed a whole bunch of errors on Saturday that stopped after that. Diagnostics would always freeze the built-in web server and require reboot.
First try connection the Yellow ethernet cable from the rca modem to your computer's network connection. If you get a connection this way, then your modem will work with a ethernet cable. If not, then call Comcast for help. The modem ethernet out to computer port must be connected to the wan line of the router. Then you can connect an ethernet cable from your computer network connection to one of the 4 ports of the router. For wireless connections you must set up the router and wireless adaptor with the same settings to connect. Follow the routers directions.
The problem would be comcast. Your connections are setup correctly. The modems do not control the internet traffic flow, they are made to produce maximum flow. If more people use the internet, the less flow it will have. Check all internet options settings, and make sure EVERTHING is set to automatic
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
If that's hooked to comcast you can only have one computer hooked up to it, and no modems as they block mac address. If you are a Comcast customer there is a workaround. Turn on your wife's wireless if she hasit, if not get her a wireless card USB is easiest. Turn on sharing on that wireless card and you will be able to access the internet through your wifes computer, and not run afoul of your Comcast agreement. Or request an upgrade to a wireless router from Comcast but your rent goes from $3.00 per month to $10.00!
You will need at least two ethernet cables like the one that is currently connecting yur PC to your Comcast Modem. Use one cable to connect between your pc and any of the ports labled 1, 2, 3, or 4 on the router. Another ethernet cable should be connected between the modem and the port labeled WAN on the router. Then (if you havent already), turn off the power to all three, the modem, the router, and the pc. then, turn on the power to just the modem and wait until the lights on the front of it stablize (usually about 60 to 120 seconds). Then turn on the router and wait another 60 seconds. Finally, boot up the computer. You should be able to connect to the internet. the next step will be to set up the wireless part of the router.