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DNS lookup failed, continuously

By dhkim2
Sep 11, 2011
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  1. dhkim2

    dhkim2 TS Rookie Topic Starter Posts: 17

    not sure i understand, the link you gave me is just google. Google is like the others, sometimes it works, and sometimes it doesn't (of course when it doesn't, the dns error message pops up).

    SYMPTOM

    1) When the internet works in the brief moments that it works as it SHOULD, it's very fast (my subscription is 25 mb/s, and it behaves as such). It's just that these moments that it does work briefly is never consistent, the only consistency being that it never lasts for seemingly longer than 5 minutes.

    2) It's virtually always worse when I actually PLUG it in, so i always keep it wireless although i check daily to see if this is still the case. As of 1 minute ago, it is, once again with the DNS error popping up.

    3) I PM'ed "KRYAN" about his problem, and found out that in his case, some "dell" program was constantly resetting his IPV6 even after he disabled it manually. This is not my problem as even now my IPV6 is off.

    4) One other strange thing is that when I download whether it be a torrent or a direct download it is ALWAYS super-fast... so apparently even when I can't open up google.com because of a DNS error, I can still download torrents at 3 mb/s ALWAYS. Of course this is assuming that I can even download the 2 kb torrent file to start the actual downloading process.

    5) I was actually using the internet when the problem occurred. I was using youtube, and the videos all of a sudden crashed as it sometimes does due to java errors or whatnot. I thought nothing of it, closed all windows, opened up google chrome again and that's when the entire internet just gave me a DNS error sign.

    6) Before I reformatted, the problem seem to subside slowly. When these problems first started, my internet barely worked at all. Day by day, I was able to use the internet more often. Now, if the DNS error pops up, I just press the reload button a couple of times for it to work (have to be patient, you could click 50 times in a second, and that won't help, you just have to click in 5 second intervals, and within 20 seconds or so max it'll work... then not work just as sudden). I think it was getting "organically" better after i disabled the IPV6 and currently my dns address is set as 8.8.8.8 and 8.8.4.4 as the alternate.

    It isn't malware, spyware, virus, etc... I've reformatted, and the problem is the same.

    I can't think of anything else at the moment, and I think this is about it.


    I just started playing with the options for the hell of it, and under IPV4 properties, I clicked on the "advanced" button, went to the DNS tab, and unclicked the "register this connection's addresses in DNS," and i dunno... but I haven't had any connection problems for 5 minutes which is a record up to this point... I know I'm probably jumping the gun here.

    Uh.... 10 minutes and no problems whatsoever. WTF.. did i fix it?

    30 minutes and no problem... huh, what do you know.

    35 minutes... damn, it happened, but only once, and one reload button was all it took. I'll stop now.
     
  2. dhkim2

    dhkim2 TS Rookie Topic Starter Posts: 17

    it seems to be largely fixed. i came across the DNS error once in about 2 hours. Internet doesn't seem to be experiencing any slowdown.
     
  3. jobeard

    jobeard TS Ambassador Posts: 13,450   +324

    get a command prompt window and enter
    ping -t -w 5000 8.8.8.8

    this will stay active as long as you let it, knocking at the door of the google dns 8.8.8.8
    and if you get a dns error in the browser, then this window will have a timeout (but also recover).

    position the command window so the bottom of the window is at the bottom of your monitor- put the browser window OVER IT, but raise its bottom so as to expose two lines from the command prompt. You can run all day like this to monitor the dns availability
     
  4. dhkim2

    dhkim2 TS Rookie Topic Starter Posts: 17

    be that as it may, it doesn't address the core of the problem though, I think. Just de-clicking the "use dns, etc.." button helped a lot, but the problem still remains for sure.

    anyhow, if you have any other great ideas, let me know, thanks.
     
  5. jobeard

    jobeard TS Ambassador Posts: 13,450   +324

    If you note, the the comment was to monitor the dns, not fix the dns.

    If the ping can not perform w/o timeouts, then neither can your browser access the dns reliably. You have all the symptoms that a node between you and the dns is unstable/unreliably.
     
  6. dhkim2

    dhkim2 TS Rookie Topic Starter Posts: 17

    so... suggestions? just change isps?

    sorry, I'm completely oblivious to the technical lingo.
     


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