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  1. #1
    3 Star Lounger
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    Losing Internet Access

    All,

    For about the past two weeks, we have been having recurring problems with our internet access. Until recently, the access has been fairly robust.

    The set up is a cable modem (Linksys) connected to a wireless router with a 4 port switch (Linksys). The main desktop is connected to one of the ports on the router. A second PC accesses the internet via a USB wireless connection.

    The recent problem seems to occur randomly and as often as several times a day if there are folks on the PCs and using the connection. The only surefired cure that I have found is to power everything off and then back up, starting with the modem, then router, then PC. This is a pain.

    Both PC's run virus checkers and spyware programs. Both come up clean. The only thing I can remember doing that roughly corresponds to the beginning of the problem is turning the personal firewall for the main desktop back on after running with it off for some time. The reason it was turned off was because I read that running a personal firewall in addition to the firewall belonging to the router could cause problems. I got tired of seeing the caution pop-up appear at boot up waring me of not having the firewall turned on.

    Any thoughts on all of this?

    Douglas

  2. #2
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    Re: Losing Internet Access

    If you call the internet provider, the first thing they will tell you to do is change the splitters. Splitters are relatively cheap, but you need to make sure you use the right ones (do that by asking your cable provider). If that doesn't help, check your actual cable lines. You can do that by plugging your cable modem in along the connections of your lines to see if you get a signal or not.

    If THAT doesn't help - its an outside problem and they will have to come and fix it. They will threaten that you will have to pay $XXX if it turns out to be an inside problem. I've been through it and if you check these things, it is an outside problem.
    <img src=/w3timages/blueline.gif width=33% height=2>
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  3. #3
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    Re: Losing Internet Access

    John,

    Would something like a splitter suddenly start to cause problems? I have to admit that the folks who built the house left us a rat's nest of splitters and coax cable, but this system has worked well for three years until this problem cropped up.

    D.

  4. #4
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    Re: Losing Internet Access

    they can corrode and interfere with the signal if you don't have the "right" ones. I would suggest atleast making a visual inspection of the splitters to see if anything noticeable appears - although the corrosion could occur inside of the connection of the splitter.
    <img src=/w3timages/blueline.gif width=33% height=2>
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  5. #5
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    Re: Losing Internet Access

    First, have you checked all the physical connections? Second, what personal firewall are you running?

    Joe
    Joe

  6. #6
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    Re: Losing Internet Access

    Joe,

    The personal firewall is part of a Trend Micro PC-cillin virus checker. I have now turned it off again to see if it has any change on the problem at hand.

    Douglas

  7. #7
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    Re: Losing Internet Access

    Douglas,
    Once you have checked out all of the physical connections (as suggested in the other replies) and if nothing improves, it may be that your cable modem is dying. About a year ago, I had exactly the same symptoms (i.e. lose connection, power down everything, power up everything, etc.), and after doing all of the standard hardware/software checks, my ISP finally concluded that it was the modem. After exchanging the modem, I've only lost internet connection a few times..
    John
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  8. #8
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    Re: Losing Internet Access

    Doug,

    This also might not be a hardware issue. I am with Sympatico in Canada and I have been seeing sort of the same problem. Does your router keep a log? When I looked in mine it was showing a lot of SYN flood attacks which were killing my connections to the net. I would have to reboot the modem and router to get it working again.

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