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Crashing WRT54G? DHCP problem?

Discussion in 'Cisco/Linksys Wireless Routers' started by JeFFJuH, Feb 18, 2006.

  1. JeFFJuH

    JeFFJuH Network Guru Member

    Hello all,

    I have an WRT54G v2.2 with the latest official firmware (4.20.8 EU).
    Everytime (even when the router and modem are completely idle) the connection drops, and requires me to reset the modem by powering it off.

    When the connection to the internet has dropped, I can still reach the router's webinterface, so it seems to be a problem at my ISP's DHCP side.

    I have tried a lot of things to see if it would fix it. Some of these things are:

    - Re-installed the firmware
    - Resetting the router to it's factory settings
    - Cloning my router's MAC address, so I would get a new IP from my ISP
    - Changed UTP cable from my router to the cable modem

    According to Linksys' local support line, there doesn't seem to be a problem with the router's firmware or hardware, but there seems to be something wrong with it's software configuration, which doesn't seem to work together with my cable modem.

    It looks like my modem wants to refresh the DHCP lease every xx hours, and my router seems to block such packets, so the router will crash.

    Here's an overview of my configuration:

    Could someone please help me out?

  2. kork123

    kork123 Guest

    I have the same problem!!
    Please help us!!
  3. JeFFJuH

    JeFFJuH Network Guru Member

    Somebody? :thumbdown:
  4. bughead

    bughead Network Guru Member

    I have the same problem as well, I have send an email to support @ linksys.com I'll keep you informed.

    I also found out it may be has got something to do with Upnp on your client. Make sure you have the latest firmware for your WRT54G. I have a V5 with firmware 1.06, but still have these problems.

    >> Check out this page from Microsoft
    Wireless update rollup package for Windows XP is available

    As soon as I know more I will post it here
  5. bughead

    bughead Network Guru Member


    I am still in contact with Linksys support but the problem seems to be caused by your client not the Linksys hardware.

    I've tried some update on my XP Professional Client, I was using an old laptop with Windows XP Prof without any Servicepack. Now I have installed SP2 with all th latest fixes and don't have any problems anymore losing connection. But then again I also stayed connected to the wirelessnetword for max 4 and half hours, but it seems to solve the problem.

    So, TIP nr.1 : update your XP
  6. psx2001

    psx2001 Guest

    My problem was a little similar to yours.
    My internet service is ADSL
    I have a Starbridge DSL305EU and a WRT54G V4
    What I did was:
    Configure my DSL modem as a router,
    disable DCHP and enable NAT.
    Configure my WRT54G taking the internet
    with STATIC IP
    Configure my net cards with STATIC IP and DNS.
    Hope this helps you.

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