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Article #615Re: New AT&T Broadband Internet DHCP problem!!
From: Hakeem
Date: Sat, 15 Dec 2001 17:34
Date: Sat, 15 Dec 2001 17:34
79 lines
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4136 bytes
I noticed this same problem the same day my cable came back up. I have pretty much given up calling for support, so I decided to use someone else DNS server that I know works for sure is probably more reliable. Haven't had any problems since then. "Michael Feinberg" <mfeinberg@NotAtHome.com> wrote in message news:Xns916EE6793ADD4aphotographerhomecom@63.240.76.16... > In at least my region, there is a problem with the DNS server settings being > provided by the DHCP server. It is responding with 4 DNS servers, but only > the first 2 are true DNS servers. The last two appear to be DHCP servers. > The first 2 DNS servers appear to be timing out on requests. This is causing > secondary, and then tertiary servers to be queried. In my case, once DNS > cycled to the third server I was toast as there was no way I could have a > chance to resolve DNS again as the OS (Windows) doesn't reset to the primary > DNS server on it's own. > > > SYMPTOMS: > > You will have full Internet access, but at some point will loose the ability > to reach any servers. Programs such as AIM or ICQ will continue to function > and you still still have an connection indicated on your cable modem. > > What has happened is you have lost the ability to resolve DNS names. To > demonstrate this you could put the following IP address in your browser and > it will work: 207.68.171.253 (which is WWW.MSN.COM) > > What is happening is a request to resolve a DNS name is timing out. When > this happen the next DNS server in line is used, and so on. The OS does not > reset back to the original server unless rebooted (which is why your system > would work if support told you to reboot). The same is true if you release > and renew your IP settings (if that means anything to you, it's not > important anyway) > > > RESOLUTION: > > *NT / WIN2K / Win XP? > I corrected the problem by disabling DHCP supplied DNS settings and manually > set the first 2 DNS servers that had been supplied by DHCP. > > (alternate) > If you prefer not to do this, you can just run IPCONFIG /RENEW from a > command line and your DNS should be restored for a while. > > *Win9x / Win ME > If I recall, this is not an option in Win9x as the DHCP response overrides > the configured settings. > > What you can do is launch WINIPCFG > select the SHOW ALL button and write down the following: > IP ADDRESS > SUBNET MASK > GATEWAY > and the FIRST TWO DNS servers > > Now change yor TCP/IP settings to manual and configure using the numbers you > noted. > > (alternate) > You still launch WINIPCFG, but just click the RENEW ALL button and DNS will > be restored for a while. > > > I did call in this to AT&T, but I dount it will get forwarded to whoever > would need to see it. Eventually they will figure it out...
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 10298d,9036b507d9187c3d X-Google-Attributes: gid10298d,public X-Google-Thread: 113850,9036b507d9187c3d X-Google-Attributes: gid113850,public X-Google-Thread: 10f392,9036b507d9187c3d X-Google-Attributes: gid10f392,public X-Google-ArrivalTime: 2001-12-15 09:34:01 PST Path: arc1-ca.pugleaf.net!archiver1.google.com!news1.google.com!newsfeed.stanford.edu!news-spur1.maxwell.syr.edu!news.maxwell.syr.edu!wn4feed!wn1feed!worldnet.att.net!204.127.198.203!attbi_feed3!attbi.com!rwcrnsc54.POSTED!not-for-mail From: "Hakeem" <hodulate@attbi.com> Newsgroups: comp.dcom.modems.cable,alt.cable-ip,cableinet.cable_modems References: <Xns916EE6793ADD4aphotographerhomecom@63.240.76.16> Subject: Re: New AT&T Broadband Internet DHCP problem!! Lines: 81 X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Message-ID: <cQLS7.2048$KY.91203@rwcrnsc54> NNTP-Posting-Host: lOLS7-35866-KY-90924@rwcrnsc54 X-Complaints-To: abuse@attbi.com X-Trace: rwcrnsc54 1008437640 lOLS7-35866-KY-90924@rwcrnsc54 (Sat, 15 Dec 2001 17:34:00 GMT) NNTP-Posting-Date: Sat, 15 Dec 2001 17:34:00 GMT Organization: AT&T Broadband Date: Sat, 15 Dec 2001 17:34:00 GMT