Topic 'AZ- DNS Servers Down?' in forum 'Cox HSI' - dslreports.com

Re: AZ- DNS Servers Down?

Fri, 01 Feb 2013 14:19:09 EDT

Optimus2357 posted : Not odd at all that your Cox Business wasn't effected. Probably use different DNS. Did you check?

And what do you think the reason is?

Re: AZ- DNS Servers Down?

Fri, 01 Feb 2013 08:51:30 EDT

jsmiddleton4 posted : "a two fault problem"

Or more. The issue with a few modems brought some other issue to light, which impacted something else, etc.

Its a system, not single variable entity. Those little dolls for whom you squeeze their feet and their eyes pop out, that's a "system".

I have business Cox as I work from home. Its not connected through Cox via 2 completely different systems. The splitter is in my house and I have 2 modems. Yes at some point it routes to my work server. Not sure exactly where but it isn't across the street. The eventual split has to be upstream a bit.

If the Cox system was overwhelmed due to traffic from some bogus firmware it is odd that my business connection has shown absolutely no impact IF their explanation is accurate. Glad my business line is fine.

Maybe now at least Cox will address their DNS server issues that we've all, well many of us, have dealt with for some time. For some that issue has been intermittent for others they've permanently taken the Cox DNS servers out of the picture.

In my work we have learned to be honest with folks. While it isn't always pleasant we at least don't lose our client's respect by treating them like their stupid and we earn their trust not by being perfect but by demonstrating integrity by being transparent.

Sad that Cox doesn't seem to operate that way.

Re: AZ- DNS Servers Down?

Fri, 01 Feb 2013 02:45:08 EDT

Optimus2357 posted : A more recent thread on Netgear's own forum. Looks like once they discovered the issue, Netgear pulled the firmware from their pages. Least thats what it looks like.

»forum1.netgear.com/showthread.php?t=83288

Re: AZ- DNS Servers Down?

Fri, 01 Feb 2013 02:35:57 EDT

nonymous posted :

said by CoxTech1:

This *may* be related to the issues everybody is having:

»WNDR3700v1/AV 1.0.16.98-dns BETA RELEASED!! FIXES DNS BUG!!

That link is from 2011 ?
Still didn't notice a thing as my own router uses multiple DNS not just cox or google etc.

Re: AZ- DNS Servers Down?

Fri, 01 Feb 2013 02:24:04 EDT

Optimus2357 posted : I think the complication comes from the fact that its was a two fault problem. This is just my opinion of what happened based on reading this and a couple other threads.

First a new firmware was released for the WNDR3700v1. Since they update firmware automatically by default, the firmware bug in that release effected all routers of that type simultaneously.

This caused two problems. A, each WNDR3700v1 was unable to query DNS, causing many with that router to be unable to get online. B, that same bug caused each router to have issues with the automatic time update features of those routers to send useless "trash" traffic to the DNS servers they got through DHCP. This caused those DNS servers to slow down or stop functioning all together. Its possible other DNS servers are set to drop any incoming "trash" traffic of that type.

Not everyone with a WNDR3700v1 was effected by problem A. Some disabled the firmware auto update. But everyone in the area using the standard DNS was effected, no matter what router. To stop the outbound traffic, disabling the time feature and rebooting the router worked. Changing the DNS if you had the WNDR3700v1 is a temp fix, but I feel that's just pushing the problem onto another DNS. But it was the main fix for people with other routers but still effected.

Probably what Cox eventually did was block that traffic until they could set the DNS servers to ignore it. Then hopefully each WNDR3700v1 will automatically patch itself when Netgear pushes the now beta firmware as a public release.

Re: AZ- DNS Servers Down?

Fri, 01 Feb 2013 02:10:38 EDT

tim85254 posted : Up and down and up and down and up and down all night in NE Phoenix.

Now I'm on the phone with "support" who denies seeing a modem on my account even though I'm seeing a tiny little sliver of "up" at the moment. Doesn't matter which DNS I use if the modem is losing sync with the network and not coming back online. It's a Cisco DPQ3212 EMTA... have temporarily taken a phone line to do SOMETHING about reducing the gigantic bill for TV and internet.

I expect I will lose service completely during the call, the serial number of the device has been requested. "It's odd, you say you have internet but I have no modem listed on your account." This will not end well...

And it went downhill from there. While I was on hold I lost connectivity. "There is no internet modem on your account. I can fill out a form with your serial number or you can take the modem to a cox store." No dial tone on the phone line anymore either. Awesome support, leaving me worse off than I started!

As for my intermittent connectivity? "The modem was maybe picking that up via wifi."

It's magic.

She can fill out the form, whatever. Since the call my modem has now gone into a cycle of try to synch, then give up completely, try to synch... whatever. It's outta here on Saturday. Bye, COX.

I'll definitely be heading to the cox store on Saturday - with the EMTA, 3 cable cards and 3 tuning adapters. $160 per month for this garbage service and it ends here. Life will go on without cable.

CenturyLink has had a brand-new DSLAM a few hundred feet from my front door for the last year. Just ordered 40/20 service. And I know I'm trading one set of problems for perhaps a different set of problems.

Re: AZ- DNS Servers Down?

Thu, 31 Jan 2013 23:16:41 EDT

jsmiddleton4 posted : So a bad firmware on some else's router is putting extra traffic "out there" on Cox's part of the web that is messing up the rest of our dns server addresses?

I don't know whether to be insulted or feel sorry for folks who might actually believe that explanation.

Re: AZ- DNS Servers Down?

Thu, 31 Jan 2013 22:59:21 EDT

dvd536 posted :

said by CoxTech1:

That's what I was trying to explain. Since you're using Motorola you'll only experience the symptoms of the problem which will be DNS failures. So far it appears to be only certain Netgear firmwares that are contributing to the problem.

cannot find www.facebook.com
cannot find www.dslreports.com
cannot find live.com
cannot find twitter.com
-
direct to modem, no netgear, no moto.
changing away from cox dns fixes it.
--
Despises any post with strings.

Re: AZ- DNS Servers Down?

Thu, 31 Jan 2013 20:47:02 EDT

ryanmcv posted : Is this issue still ongoing? I'm using Google's Public DNS and thing have been great. Especially enjoying the new speed upgrades here in Phoenix. :)

Re: AZ- DNS Servers Down?

Thu, 31 Jan 2013 19:52:44 EDT

jsmiddleton4 posted : I'm sorry but that explanation doesn't line up with our experience.

I went from not having any access to having no issues by just changing my DNS Server addresses in my router.

If the explanation is accurate then how is it my changing dns servers fixes the symptom?

Re: AZ- DNS Servers Down?

Thu, 31 Jan 2013 18:05:18 EDT

mylemonblue posted : It's good to see it's not just me. Seems the issue is still ongoing with various old and new customer equipment from what I've found so far. I was wondering if anyone has any suggestions for alternate ipv6 DNS server settings. I see that Google has open servers for ipv6 but I'm looking to stay away from going through anything of Googles.

Re: AZ- DNS Servers Down?

Thu, 31 Jan 2013 16:56:53 EDT

cornYukon posted : Ok, so can you explain why I can no longer get the 3 IP address's through my SB6120 since this issue happened? I have called the COX support and they cannot tell me why I no longer get the 3 IP's that I am suppose to get. I can only get one device to work now since this has happened.

Re: AZ- DNS Servers Down?

Thu, 31 Jan 2013 15:33:24 EDT

swingtrader posted : Both Twitter and Amazon sites have crashed today. That butterfly is sure flapping its wings.

Re: AZ- DNS Servers Down?

Thu, 31 Jan 2013 15:03:27 EDT

CoxTech1 posted : Here's the official word FYI

»ww2.cox.com/residential/arizona/···00000000

Re: AZ- DNS Servers Down?

Thu, 31 Jan 2013 14:36:25 EDT

CoxTech1 posted : The issue gets quite complicated but there appears to be an issue with a particular firmware generating lots of traffic.

Re: AZ- DNS Servers Down?

Thu, 31 Jan 2013 14:32:34 EDT

jsmiddleton4 posted : I was down with Cisco modem in Peoria/Glendale. Put Google's DNS servers in my Asus router and the problem went away.

I've used non-COX DNS servers before but had returned to the default ones for Cox so I knew what to do.

Hardly seems like an installed equipment issue on the user side.

Re: AZ- DNS Servers Down?

Thu, 31 Jan 2013 13:37:39 EDT

anon posted : I switched to that firmware over a year ago on my netgear because I was having dns issues personally. This problem, for everyone, just started today and there are not anymore version 1 or 2's of that netgear router being sold for over a year so why would this cause this now all of a sudden?

Also, I'm sure there are hundreds or thousands of people that have that router and I'm sure only a handful come to this forum so how would they know to upload that firmware anytime soon so it fixes it for the rest of us?

Re: AZ- DNS Servers Down?

Thu, 31 Jan 2013 13:35:39 EDT

CoxTech1 posted : We think we have a grasp on the root cause of the issue at this time. Getting those customers fixed so it doesn't happen again however is something we're still trying to work out.

Re: AZ- DNS Servers Down?

Thu, 31 Jan 2013 13:35:27 EDT

badgagt posted : 8.8.8.8 and 8.8.4.4 if those go down it's because god decides no more internet.

Re: AZ- DNS Servers Down?

Thu, 31 Jan 2013 13:32:06 EDT

irontoes posted : As of 11am local time here, things seem to be back to normal now.

Edit- Spoke too soon, mostly back to normal, a few stragglers still slow loading, or missing images/layout/etc..

Re: AZ- DNS Servers Down?

Thu, 31 Jan 2013 13:23:26 EDT

swingtrader posted : gotcha. very interesting problem.

Re: AZ- DNS Servers Down?

Thu, 31 Jan 2013 13:12:01 EDT

CoxTech1 posted : Yes, since you have D-Link you wouldn't need to do the fix either. As those that need to do the fix do so and/or are removed from the network the DNS issues will get better for everybody else.

Re: AZ- DNS Servers Down?

Thu, 31 Jan 2013 13:11:02 EDT

swingtrader posted : I disagree. As I said, I have a D Link router, NOT a Netgear and am the OP that started this thread.

Re: AZ- DNS Servers Down?

Thu, 31 Jan 2013 12:53:34 EDT

CoxTech1 posted : That's what I was trying to explain. Since you're using Motorola you'll only experience the symptoms of the problem which will be DNS failures. So far it appears to be only certain Netgear firmwares that are contributing to the problem.

Re: AZ- DNS Servers Down?

Thu, 31 Jan 2013 12:50:52 EDT

anon posted : That isn't the case...I've tried rebooting my Moto Surfboard twice this morning, still same DNS issue on all devices. Moto is NOT in the clear.

Re: AZ- DNS Servers Down?

Thu, 31 Jan 2013 12:41:18 EDT

CoxTech1 posted : Motorola isn't impacted except for experiencing symptoms of the problem.

Re: AZ- DNS Servers Down?

Thu, 31 Jan 2013 12:39:24 EDT

anon posted : Down in Glendale, AZ as well. Moto SBG surfboard modem/router, requires Cox to update from their end.

Re: AZ- DNS Servers Down?

Thu, 31 Jan 2013 12:17:06 EDT

CoxTech1 posted : This *may* be related to the issues everybody is having:

»WNDR3700v1/AV 1.0.16.98-dns BETA RELEASED!! FIXES DNS BUG!!

Re: AZ- DNS Servers Down?

Thu, 31 Jan 2013 11:22:35 EDT

nox PHX posted : 85043 here

Having connection issues as well. I thought it was the construction going on outside!

Re: AZ- DNS Servers Down?

Thu, 31 Jan 2013 11:13:38 EDT

ryanmcv posted : I was having the same issues in downtown Phoenix (85004 ZIP code) before I left for work this morning. Strangely enough, my connection at work (same ZIP code) through Cox Business does not seem to be having any issues.

Re: AZ- DNS Servers Down?

Thu, 31 Jan 2013 11:02:32 EDT

anon posted : Same issue is 85338. I started troubleshooting on my end and decided to check here first.

Re: AZ- DNS Servers Down?

Thu, 31 Jan 2013 10:53:15 EDT

swingtrader posted : D Link router here.

Re: AZ- DNS Servers Down?

Thu, 31 Jan 2013 10:44:10 EDT

CoxTech1 posted : Meanwhile if anybody is using a Netgear router we're asking that you reboot it and please check for and apply any firmware updates that may be available.

Re: AZ- DNS Servers Down?

Thu, 31 Jan 2013 10:41:29 EDT

nickphx posted : I don't use COX's nameservers because they've always been unreliable and they redirect failed lookups to some crappy advertising page.

Re: AZ- DNS Servers Down?

Thu, 31 Jan 2013 10:37:28 EDT

swingtrader posted : Workaround working here but very slow look up.

Re: AZ- DNS Servers Down?

Thu, 31 Jan 2013 10:37:27 EDT

bowlingblogg posted : I am in Tucson and having the same issues. I switched to DNS servers 209.242.128.101 and 68.6.16.30 (configured in the router) and now all is well. I used the program DNSBench to find the fastest servers.

Re: AZ- DNS Servers Down?

Thu, 31 Jan 2013 10:32:47 EDT

kirkcarp9 posted :

said by CoxTech1:

The DNS issues aren't upgrade related. We're actually investigating a customer equipment related cause but don't have more to say at the moment. You can try the following which I believe will work as an effective workaround:

»ww2.cox.com/residential/support/···00000000

Same problems here in Tucson. Tried the workaround suggested by CoxTech1 but it didn't work.

Re: AZ- DNS Servers Down?

Thu, 31 Jan 2013 10:21:02 EDT

irontoes posted : Just chiming in, having the same issues. 85032 zip.

Re: AZ- DNS Servers Down?

Thu, 31 Jan 2013 10:16:53 EDT

CoxTech1 posted : The DNS issues aren't upgrade related. We're actually investigating a customer equipment related cause but don't have more to say at the moment. You can try the following which I believe will work as an effective workaround:

»ww2.cox.com/residential/support/···00000000

Re: AZ- DNS Servers Down?

Thu, 31 Jan 2013 10:10:30 EDT

anon posted : same issue, chandler,az. i contacted cox via online chat and they said they were upgrading something and they dont have an eta. bs.

Re: AZ- DNS Servers Down?

Thu, 31 Jan 2013 09:23:20 EDT

eric89011 posted : Same in LV. Using openDNS for now and pages are loading quickly again.

Re: AZ- DNS Servers Down?

Thu, 31 Jan 2013 09:05:16 EDT

CoxTech1 posted : Yes we are currently investigating DNS issues at this time.

AZ- DNS Servers Down?

Thu, 31 Jan 2013 08:39:58 EDT

swingtrader posted : A total mess in East Valley Phoenix AZ this morning. Anything requiring Cox DNS look-up is failing. Ping Plotter showing numbers on the few sites that ping but no names. I can IP address into sites that I know (have my own). Everything else is PAGE NOT FOUND.

Quick help and confirmation would be appreciated.