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Solved: Time For A New Router?

Discussion in 'Networking' started by Frank4d, Dec 24, 2012.

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  1. Frank4d

    Frank4d Retired Trusted Advisor Thread Starter

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    I woke this morning to find an error that another computer on the network has a duplicate IP address. I tried ipconfig/release, ipconfig/renew, same thing. Rebooted the router and my computer, same thing. I gave my computer a static IP for now.

    Edit: I forgot to mention, when I tried using the Windows 7 repair wizard, it said it could not repair the problem and assigned a 169.254.x.x address instead of getting an IP from the router. The router DHCP table shows addresses available, so should not have been a problem.

    Then my daughter reported a similar problem... her laptop can connect to the wireless router SSID (a second router configured as a switch), but no internet connection. I configured her with a static IP too until I straighten this out.

    Then my son's computer can't connect to the internet either. I rebooted the routers again and now he has an internet connection, but can't get the other two computers (daughter and mine) to get a dynamic IP... still get the duplicate IP error.

    Thinking my trusty Netgear RT314 router is on its way out?
     
  2. etaf

    etaf Moderator

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    Wayne
    sounds like its stopped providing a DHCP service
    It could just be a setting glitch - have you logged into the router and checked that
    dhcp is enabled
    and also checked the range of dhcp provided
     
  3. Frank4d

    Frank4d Retired Trusted Advisor Thread Starter

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    I logged into the router and verified DHCP is enabled and is set to provide 10 addresses, of which the DHCP table shows 5 used. What I am seeing looks like it is trying to give 192.168.0.4 to multiple computers. I will turn off all networked devices and factory reset the router... maybe that will help.
     
  4. TerryNet

    TerryNet Moderator

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    Make sure you have the latest router firmware; then reset the router to factory defaults and reconfigure. Sometimes that jolts them into behaving--at least for a while longer.
     
  5. Frank4d

    Frank4d Retired Trusted Advisor Thread Starter

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    I think this is solved for now. I learned while I was going around the house re-configuring hardware, my 17 year old son was doing the same thing without my knowledge. What resulted was two routers with the same IP address, two DHCP servers, and wireless set to default with no security.
     
  6. etaf

    etaf Moderator

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    (y) thanks for letting us know

    we had the same issue at work years ago, and was down for about 3 days - two dhcp servers had overlapping ranges and once X number of people signed on on the office (which only had 4 or 5 perm staff, so number varied every day as people dropped in to work) the whole thing started crashing and a LOT of peoples laptops where taken into IT to be rebuilt .....
     
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