Due to an issue with my router, I disconnected it completely an have my laptop directly connected to the modem via an Ethernet cable. I cannot connect to the Internet now, and the only lights on the modem which are on are the pc link and cable. The cable activity light is not on at all. I have disconnected, reconnected, rebooted everything. Please help. Thanks

Yes you can and by far the best way.

How to Connect Ethernet Cable to Wireless Router

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This may be due to interference or if there are wireless around that may have the same network name. If you can get first to the interface of the router via a wired connection (use the cable that came with the router) with your computer. You can disconnect the cable from the router to the modem if you do not have any ethernet cable around and use it for your computer.

You should be able to access the set up page of the router via its address and change it to your name.

Check also if the computer can connect to other routers. If it is a laptop see it it can connect to any free hotspots to check if its the computer or router that has an issue.

You will need to contact Comcast. They will reset your service for the new equipment. Things are rarely "plug & play" with Comcast.

try to power down both devices for a min than turn them back off sometimes they have to clear MAC address.

you'll have to first connect the computer to the dsl/cable modem via ethernet cable, then connect the modem to your computer directly, then access the configuration page of the router and set the wifi settings including security option (WPA, WPA2, WEP, Shared), then open the wifi adapter settings on your laptop and make sure the security option and security key are entered correctly. disconnect the ethernet cable from the laptop to the modem and test the connection.

I'm sure you have tried most of these steps but I'm going to list them any way so we have a complete picture of the trouble shooting process.

If your only getting local access that indicates that the router is broadcasting the wireless signal but unfortunately there is a connection issue between either the modem and router or the modem and the internet service provider. The first step is to verify that your modem is online with a good connection. If you have a working internet based phone than your in good shape. If not than you will need to research the light patterns of your modem or bypass the router to determine weather or not you have a connection to the ISP. The first step in trouble shooting a connection issue between the modem and router is to disconnect the Ethernet cable from the modem and the router than reconnect it. Make sure that the cable is connected to the correct ports. Next you will want to power cycle the computer, modem, and router. To do this you will need to shout down the computer and disconnect the power cables from both the modem and router. Allow all devices to remain off for 2 minutes. Plug the modem in first. Wait for the modem to establish a connection with the internet service provider(ISP). Depending on the type of modem this can take up to 5 minutes. After a connection to the ISP has been made reconnect the power to the router. Wait about another 2 minutes for the router to establish a connection with the modem then turn on the computers in the home. From this point you will need to retest.
If you still only have local access than there is a good chance there is an issue this either the Ethernet port on the modem or router. To trouble shoot the Ethernet port on the modem you can bypass the router and power cycle the modem and PC again. If the PC has no access wile directly connect to the modem than there is an issue with the modem and will need to be replaced. The good news is that most internet service providers will replace the modem for free. If all the trouble shooting steps above have failed than you will need to contact the router manufacture directly.

I hope that information above has helped is some way.
If possible please rate this solution.

Connectivity issues can be many.

I would start my first rebooting the main modem.
Once that is up, reboot the wireless router.
Once that is uo, reboot the laptop.
Try to connect.

If that does not work, eliminate the wireless router and connect the laptop directly to the modem via Ethernet cable and reboot the computer again and see if it works. If it does, then it is something with the wireless router. If it doesn't, i would contact the provider so they can verify that they can see your modem on their network. If they cannot, they will advise you further (hardware/cabling issue). This is all assuming that nothing has been changed on any settings of the laptop, router or modem.

This is part solution, part clarification request: When you say that you installed the setup software on your laptop, setup software for which: the modem, or the belkin router? Also what type of internet service do you have - Cable? DSL? If you are not sure, list your ISP. What operating systems do you have on your laptop and your main computer?

You say that you connected the modem to your main computer - I am assuming that you mean that you connected your modem with a network or ethernet cable (the one with a connector that looks similar to but larger than a telephone's connector) to your computer's ethernet card, or NIC, port. Is anything connected by ethernet cable to the Belkin router? If you have not connected the modem directly to the router, it will not connect to the internet, and anything connecting to the Belkin router will not be able to access the internet as well.

Try this: disconnected the power from your modem, then disconnect power from your router, and disconnect any ethernet cables from computer & modem, or computer and router. Connect an ethernet cable from the modem to the Belkin Router. (Ensure that you have plugged in the ethernet cable on the router into a port that is either set aside from others, or indicates "Internet", WAN, or something similar - it should be marked either with a different color, labled, or both). Now power on your modem. Wait until you see a steady "ready" light, green ethernet light, or the light usually lit for that model indicating it has completed its bootup tests and the internet connection is ready.
Next, ensure the ethernet cable is connected from the modem to correct WAN or "internet" port on the Belkin Router, then power up the router. Once the router boots up completely, plug in a cable from your computer's (main computer) NIC or ethernet card or port, to a port on the Belkin Router (there should be more than one port available, generally numbered "1, 2, 3" and so on - in a group, seperate from the WAN or internet port). Once you are sure you have the cable plugged into one of the correct ports, and if you have windows, restart your main computer.

Now on your main computer, check to see if you have an internet connection. If you do, you can now resume running the router's software setup on your laptop, which sounds as though it was walking you thru the setup process to connect you via wireless connection to the internet. Report back if you have any success, or if you have any further problems, and best of luck! Hope that info helps

it will as long as the modem/router is connected to a phone line, instead of the pc, the only cable connected to the pc should be a ethernet cable; or you have the pc networking set that it connects via another pc instead of through a gateway, re run the wireless network wizard.

You have to check if your computer can connect to the modem with an Ethernet cable. This will tell you if the ethernet port on the modem is working. if that does not work call your cable provider.

Next thing after you get the instructions above done.

Press the reset button on the back of the router> press it in for 30 seconds then let go and pull out the power. Connect the router up the way it should be before you reset by the way. check if you have internet if you do not follow hte directions at teh link below.

CABLE SETUP

If you need more info just message me