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Compatibility between linksys WRT54G Router and Intel PRO/Wireless 3945ABG Network Driver

We have configured linksys WRT54G Router at our home and two laptops(XP and Vista) are connecting fine with the router but the moment i try to connect lennovo 3000(Y500) which is having Intel PRO/Wireless 3945ABG Network Driver(bought 15 days back) it connects fine for the first time but after a minute or so the router power start fluctuating continuosly. Again when I disable the wireless network in lennovo 3000(Y500), power of router get stabilized on its own. So the problem is whenever i try to connect the lennovo machine having Intel PRO/Wireless 3945ABG Network Driver fluctuation of router starts and when i disable wireless connection, router works fine. I went through some forums and changed the power management properties in Intel PRO/Wireless 3945ABG Network Driver to the highest but it did not help me. Please help me regarding this. If possible please tell me do i need to upgrade the firmware of router, if it is so tell me how to do it. Thanks in advance.

Posted by sumit dayal on

  • sumit dayal May 17, 2007

    Thanks for the reply sandrew but this is not the case, I mean I have not connected wired and wireless at the same time.

    I just enabled the wireless network of the lenovo machine and router's intermittent behaviour starts though it was working fine on other laptops before enabling lenovo's wireless connection.

    Now, about the signal part other laptops are working fine even in the distance of 10-15 ft but lenovo is not working even in one or two ft distance.

    Regarding your last point, it is set on automatic obtain of ip address only.

    Thanks for your concern but it did not solve my problem.



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From what you say, it sounds as if you have your wired and wireless card connected at the same time. This will confuse the router as it is trying to give two different ip addresses to the one pc, which it cannot do. If you are using the wireless adapter, make sure you dissable the wired adapter as the router will continually look for the wired ip address while allocating your wireless adapter causing instability. Next ensure you have a good clear signal from router to notebook as this can obviously cause problems. Lastly ensure that the wireless cards TCP/IP properties are set to obtain ip address automatically, especially if your router is DHCP enabled to allocate ip addresses automatically.

Posted on May 17, 2007

  • Anonymous May 17, 2007

    just another thing to check is that maybe your router is set at 54MBPS transfer rate and the pc is set at a faster transfer rate e.g 108MBPS or 125MBPS, also check that the network card is set at the correct A, B or G configuration as your router will be set at 'G'



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