Question about Linksys Wireless-G WRT54GX Router (WRT54GX2)

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Wireless Networking With a Linksys Wireless-G WRT54GX Router?

I am in the process of setting up my wireless home networking devices..Laptop, printer, mobile phone, DVR recorder, etc..

My current set-up is my laptop directly connected by Ethernet to a Motorola Model U10C018 cable modem. My printer is also directly connected to the laptop. For the most part I'm always at my desk so I never really thought too much about the wireless aspect.

Now I've decided to expand my horizons and use some of these fancy gadgets I paid for. I turned the wireless switch on the laptop and proceeded to set up some available connections. My settings were saved to a flash drive that I intended to plug into all my devices usb ports.I thought this would be the perfect time to dust off my Linksys Wireless-G WRT54GX and start with that first. If everything else was going to be wireless I figured my own laptop should be wireless too.

Apparantly not. Everything sets up perfectly with both the router and the modem, but when I remove the ethernet from my laptop I lose my LAN connection.

How can I resolve this? Can I bridge the connections I have? Do I need to create another connection of some sort? If I cant become wireless with my laptop is there any benefit of having both the router and modem connected? If not, which one should I use and why? Any other suggestions?

My current connections are:









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K2rt9ceswg,

You seem rather savvy so I won't bore you with frivolous explanation. Essentially ISPs detect the MAC address of whatever device is plugged into their network. In the case of your laptop connected wired to your modem, the MAC address of your wired adapter is what is tied to your ISP account. When you plugged in a router, the MAC address of that router was different than your laptop's wired network adapter and your ISP said "nope, not letting that connect". This is something most ISPs are doing now-a-days.

You can get around this by following these steps:

  1. Plug your PC back into the modem wired
  2. Ensure you have internet connection again
  3. Go to Start -> run and type "cmd" without quotes
  4. Type "ipconfig /release" without the quotes (there is a space in there that needs to be in there)
  5. Disconnect your PC from the modem and plug the router into it
  6. Plug another LAN cable into the router and your laptop
  7. In the same command prompt, type "ipconfig /renew"
If the computer pulls an IP address for the wired ethernet, you should be all set to disconnect the cable from the router and PC and try to connect to it wireless. If it doesn't pull an IP address, you'll need to contact your ISP and inform them that you're having trouble getting your new router to work with your existing network.

You might also consider depressing the reset button located on the back of your Linksys router to set the router to its default configuration. This would clear all previous settings if there were any and might clear up any configuration options you had set when previously using this router.

Posted on Mar 04, 2009

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