SOURCE: cable modem + dlink router
Your modem needs to be rebooted in order for your router to pull an IP from the modem. To do this, look for a little hole in the back of your modem and use a pen to push the button. Wait for the reboot to finish and then try again in about 20 seconds.
SOURCE: Motorola SB5101 Modem
reset the modem at the backside with a pen and restart the computer, check for all the leds and it should be stable
SOURCE: Ethernet Port failure new router
Check the socket in either the router or the PC. I had the same problem, only with my modem. When I inspected the port, the pins were misaligned, causing it to drop a connection. I corrected mine with a screwdriver, which is not ideal but it works.
SOURCE: Arris Modem won't work with Airport Express
Not sure how helpful this will be, as I'm running a different piece of gear, plus it requires both troubleshooting + ISP assistance. I had a similar problem with my AirPort Extreme: AirPort Extreme saw the Arris, iBook saw the AirPort Extreme, but no internet connectivity.
As I was doing this, I had my ISP on the phone that confirmed complete connectivity of the signal path and ensured that I was online. While the Arris was powered down, my ISP also sent a "message" to the Arris; I don't know if this was a software update or what. I completed the AirPort set-uo through the Utility application, the AirPort restarted, and I was online.
Hope this helps.
SOURCE: Unable to set up wireless router
Shut down your computer, unplug the cable modem and the switch. Connect all three - computer to switch, switch to modem. Make sure that the ethernet cable between the router and the modem is in the router uplink port and that the computer is plugged into one of the four ports that look alike. Wait 30 seconds - plug in the modem. Wait another 30 seconds, plug in the router, wait another 30 seconds and boot the computer. Open a browser and see if you have internet access. If you still don't, then try to check the browser by typing 192.168.1.1 into the address bar of the browser. That should give you the browser sign in screen. The Linksys default is to leave the user name blank and type admin for the password. That should give you access to the router so you can check the settings. If this doesn't work, document carefully what happens and post again with your results and we'll try to go from there.
1. Determine if you can connect to the Internet using your computer. If you cannot connect, proceed to step 2.
2. Reset the router. Unplug the router for 30 seconds and plug back in. It can take a few minutes to reconnect to the internet. If you still cannot connect to the internet, contact your Internet Service Provider before proceeding.
3. Move the Internet Gateway ethernet cable to another port on the router. Put it in one of the ports on either side of the current position on router. Make sure that the Internet Gateway is plugged into a LAN port, normally numbered 1-4. Proceed to step 4 if none of the ports work.
4. If you are using a modem and a router, disconnect from the router and plug the Internet Gateway directly into a LAN port in the modem to bypass the router. Note: This will turn off the internet to the rest of your home network temporarily. If this works:
5. If step 4 doesn't work, power cycle your home's internet modem, it may need to be restarted to provide a new IP address to your network.
- Check your router How to determine which routers and modems are incompatible with the Liftmaster or Chamberlain Internet Gateway.
- Contact the manufacturer of your router for additional support. There may be a security setting preventing the Internet Gateway to connect.
6. Perform a Soft Reset on the Internet Gateway. This renews the IP address with the router. The LED lights will blink like a normal power up. To perform a soft reset:
1. With a safety pin or paper clip, press and hold reset button while the Internet Gateway is still plugged in.
Note: The reset button is located on the side of the Internet Gateway in a recessed hole.
2. Hold the button in until you see a yellow LED light blink and release.7. Perform a hard reset on the gateway. This deletes all the devices and renews the IP address with the router.
1. Unplug the AC adapter from the gateway.
2. With a safety pin or paper clip, press and hold the reset button on the side of the gateway.
3. Plug the AC adapter back in while continuing to hold down the reset button until the yellow LED light blinks.
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the modem is not same as wireless. so maybe you need a new modem driver from the gateway's website.
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