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Loss of internet connectivity

Discussion in 'Hardware' started by Tristaan, Sep 30, 2003.

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  1. Tristaan

    Tristaan Thread Starter

    Joined:
    Aug 1, 2003
    Messages:
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    I've tried the help desk of my ISP and the help desk of NetGear and I still don't have a solution. So, I turn to the people who REALLY know what's going on, TechGuy.

    I have an ADSL connection for my internet connection at home. The phone line is connected to an Alcatel SpeedTouch Home modem. I have the LAN connection of that modem going into the internet port of a NetGear RP614 DSL router/switch. Both devices are up to date on all firmware (at least as far as I can find from the manufacturers pages). My PC is running Windows XP Home edition and I'm using a NetGear NIC.

    For the most part, on initial power up, everything works fine. However, regardless of whether or not a user is logged into the PC, the router will occasionally lose sync with the DSL Modem. By the indicator lights on the modem, it is functioning normally. Likewise, the indicator lights on the router appear as if it's functioning correctly. But no connectivity through the router to the internet is available without first cycling the power on the router and letting it re-connect to the internet connection.

    Internal networking appears to be fine (using DHCP on the router to connect my two PC's on a LAN). I can browse my local network fine, access shares, and print on the shared printer. But internet connectivity is not available.

    I need some advice as to how to proceed from here. I've found a few articles on the net concerning the Speedtouch home modem doing something called "frequency swapping" (article at http://www.mynetwatchman.com/kb/2000/06/26002.htm ) is best example. Could this be what I'm experiencing, where the modem has to swap frequencies? Or is there something else I need to take a look at?

    Any help would be appreciated.
     
  2. zeddy

    zeddy

    Joined:
    May 3, 2003
    Messages:
    2,612
    At the risk of stating the obvious, check with your ISP whether they prefer you to put in manual server addresses rather than automatic.
     
  3. Tristaan

    Tristaan Thread Starter

    Joined:
    Aug 1, 2003
    Messages:
    46
    They prefer the dynamic DNS, etc. This is what I have currently configured. According to the help desk, my router is configured according to their specifications.

    Update: I noticed that the "allow ping on network port" option was checked and my MTU was up at 1500. Taking the queue from some other sites I've visited, I turned off that ping option and reduced my MTU to 900. We'll see if that improves things.

    Further responses and help would still be appreciated.
     
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