Problems open url

Discussion in 'Tomato Firmware' started by ruif13, Oct 6, 2008.

  1. ruif13

    ruif13 LI Guru Member


    I've an wrt54g v.2.2 with last version of tomato and .. i ve problems when i try to open web sites.

    i need to refresh the browser a lot of times to have it

    i think the problem is the DNS..

    i ve that problem only in wireless.

    anyone can help?

  2. xjulzkx

    xjulzkx Addicted to LI Member

    First things first, ensure you have the latest motherboard drivers and wireless drivers for your hardware on your computer. If you are running the latest stock firmware of Tomato on your router good, make sure it's the latest version. If you still have any troubles, it's more than likely an MTU issue.

    Follow the instructions below and find the right MTU setting that works for you. Once found, change your wireless adapter's setting on your computer to corrospond with the MTU setting that works for you. Also change the MTU setting within your WRT54G v2.2 as well to reflect the MTU settings that worked for you.

    A series of ping tests using the command, ping -f -l xxxx, where xxxx is the packet size, can be used to determine the optimal MTU for your connection.

    1. Go to Start and select Run.

    2. Type in cmd (Windows 2000/XP) or command (Windows 98/ME) into the Open: field. Hit the enter key or click OK. The DOS prompt should open.

    3. At the DOS prompt, type in ping -f -l 1492 and hit the Enter key.


    4. Note the results above indicate that the packet needs to be fragmented. Lower the size the packet in increments of +/-10 (e.g. 1472, 1462, 1440, 1400) until you have a packet size that does not fragment.


    5. Begin increasing the packet size from this number in small increments until you find the largest size that does not fragment. Add 28 to that number (IP/ICMP headers) to get the optimal MTU setting. For example, if the largest packet size from ping tests is 1462, add 28 to 1462 to get a total of 1490 which is the optimal MTU setting.

    6. Change the MTU using DrTCP or editing the registry. See MTU Settings for further information.
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