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DNS Issues, Again

Posted by
Contributor

Message 1 of 15
1,544 Views

Looks like Comcast is having problems with their DNS servers again.  I had to change mine to 4.2.2.2.  I'm in Minnesota.

14 REPLIES
Posted by
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Message 2 of 15
1,536 Views

I'm seeing the same.  Here are the servers which I'm getting from Comcast's DHCP:

 

DNS1: 68.87.72.134
DNS2: 68.87.77.134

 

EDIT: I'm in Chicago.  Just finished chatting with support, they are aware of the issue, but there's no ETA.

 

Posted by
Contributor

Message 3 of 15
1,518 Views

Same here in Decatur, IL  I am using Goggles public DNS 8.8.8.8 and 8.8.4.4 and all works fine.

 

We have the same 2 DNS as stated in the message above too.

Posted by
Contributor

Message 4 of 15
1,491 Views

I'm near Chicago and the DNS is down.  Luckily, I know the OpenDNS IPs and now back.

 

Here's the Comcast DNS status link http://dns.comcast.net/status.php

 

OpenDNS IPs

Preferred DNS server:  208.67.222.222
Alternate DNS server:  208.67.220.220

Posted by
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Message 5 of 15
1,490 Views

Same here in Michigan.  Same ones mrt300 listed.  Switched to Google servers. Back up and running.  Thanks people!!!

Posted by
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Message 6 of 15
1,460 Views

8.8.8.8 works for me ...

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Message 7 of 15
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I'm business class customer in Michigan, and it seems more like my DNS traffic is being blocked.  I use OpenDNS normally, and I cannot reach it, Google DNS, or DNS for Michigan State University, so it seems like more then just Comcast DNS is not available, at least to me.

 

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Message 8 of 15
1,378 Views

Here is some info from a support chat. I am hoping that the rep is incorrect that this is "This is a system maintenance to further improve our service"


Gillyn(Sun Dec 5 22:54:43 CST 2010)>Thank you for waiting. I am so sorry but upon checking, we currently have system maintenance on your area. Our network engineers are working to resolve the issue as we speak. What I can do now is to reset the modem and hopefully it will work, if not, you will need to wait a few hours for the maintenance to be finished. I assure you that this will be resolved as soon as possible. We have created the following customer service ticket: ###########. Please refer to this number should you contact us regarding this issue. We are prioritizing this issue since we understand how important your service is. I can assure you that there is nothing wrong with your account. We appreciate if you would bear with us on this. You will be compensated for the inconvenience this is causing you. Thank you so much for your patience and understanding.

 

Me_(Sun Dec 5 21:55:57 CST 2010)>System Maintenance or System outage?

 

Gillyn(Sun Dec 5 23:02:57 CST 2010)>This is a system maintenance to further improve our service. Our network engineers are working to resolve the issue in order to restore everything. Rest assured, I have made the necessary notations here in your account. Thank you so much for understanding and bearing with us in this situation.

 

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Message 9 of 15
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It is obvious that a few of us network nerds realize what the problem is and have knowledge in our possession as to how to fix it.  I feel bad for everyone else in my city that doesn't know what to do and as stated elsewhere, the trouble number is down too.  What a sounds like "pitch" for these users.

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Message 10 of 15
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OpenDNS is working fine. Reboot if needed. I also added the 8.8.8.8 as a tertiary reference, but I ping the OpenDNS server just fine

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Message 11 of 15
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yeah I can ping OpenDNS servers fine, but I can't send DNS requests to it.

 

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Message 12 of 15
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Thousands of users to be compensated. I love it! Just be sure to call them with date/time of your outage. 50% off a current bill is the going concession to stay on their service. Still beats U-Verse

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Message 13 of 15
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Try moving google to the top of your list. right now I show OpenDNS working just fine

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Message 14 of 15
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I've tried 3 different DNS servers with primaries and secondaries, and I can't reach any of them from Comcast land, but I know all of them are up as they work fine from where I'm posting.

 

I wonder if any other business class users can reach DNS at all.  The DNS server workaround seems to mostly work for home users it seems like.

 

 

Posted by
Silver Problem Solver

Message 15 of 15
1,306 Views

I was on the new dnssec servers 75.75.75.75 and 75.75.76.76 they are also out.

 

Works fine with Open DNS.