xfezz2
join:2005-12-13
Mokena, IL
|  Problems loading google (DNS issues possibly?)
Well I "yahooed" and came across a gentleman that was running into the same problem as I am. He too is using Comcast as his ISP and he knew of other people that were having a similar issue as well. In order for him to get google loading again he had to unplug his router and power cycle his modem.
So I thought what the heck I'll try it. And well what do you know it works. But after a day or so I'd run into the same problem and I'd have to reset my modem and router again.
I was just wondering if anyone else is having the same issue or what may be causing it? | |
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Dgurion
@comcast.net
| Re: Problems loading google (DNS issues possibly?) Yes, Im having the same problem here also. It works for a while and then turns off. I know it has nothing to do with my computer, as it does this with a clean Windows XP install, and also a clean Linux install. So, it can't be adware/virus related.
Maybe its Comcast being Comcastic. | |
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jaminus
join:2004-10-14
Arlington, VA | I've had the same problem from time to time over the past few weeks. I think its just Comcast being Comcastic. | |
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 | NormanS
Premium,MVM
join:2001-02-14
San Jose, CA
 ·Pacific Bell - SBC
| Re: Problems loading google (DNS issues possibly?) said by jaminus  :I've had the same problem from time to time over the past few weeks. I think its just Comcast being Comcastic. I suspect it is more likely Google. espaeth has already explained it in another Comcast thread on Google difficulties.
»[Connectivity] Google blocked or down!?
--
Norman
~Oh Lord, why have you come
~To Konnyu, with the Lion and the Drum | |
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andyross
join:2003-05-04
Schaumburg, IL | This is affecting many people with many different ISP's. There have been posts from AT&T DSL and others with similar issues. Sometimes, altering wireless connections and some forms of wireless security make it work. | |
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PaisanDom
join:2006-06-26
Utica, MI | For the last few weeks around 8-10PM, google.com, www.google.com, images.google.com, and maps.google.com will not load for a few hours.
But, video.google.com & news.google.com and everything else work. | |
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Guestt
@comcast.net | Iv'e been having the same problem, but its not only affecting google, its also affecting Limewire | |
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c33v33
join:2003-10-14
Chicago, IL
| Same problem. Started a few days ago.
I'm guessing Comcast DNS issues. »64.233.187.99 works for google, but not »www.google.com.
I notice this happens at night for me. Google works during the afternoons. Not sure why. | |
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tshirt
Premium,MVM
join:2004-07-11
Snohomish, WA | Re: Problems loading google (DNS issues possibly?) google has verified it was a DNS error (or hack? or problem with the Web Accelerator Beta?) that then spread to other ISP's DNS.
Since many who didn't get google.com but instead got google.corn.net a hack seems likely. | |
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u475700
Premium
join:2004-02-16 | I've encountered this problem with google and several other sites when I select them from the drop down for the address bar in Internet Explorer. However, once I press enter key the page appears almost imediately. | |
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EnasYorl
Thieves World
join:2001-12-02
West
·Verizon Online DSL
1 edit | said by xfezz2 :Well this just started happening a few days ago. All other web pages would load, except google. So my first thought was to run a full virus scan and check for spyware to make sure nothing was infected or hijacked. Both clean. Then I went to check my host file. That too is clean. Well I "yahooed" and came across a gentleman that was running into the same problem as I am. He too is using Comcast as his ISP and he knew of other people that were having a similar issue as well. In order for him to get google loading again he had to unplug his router and power cycle his modem. So I thought what the heck I'll try it. And well what do you know it works. But after a day or so I'd run into the same problem and I'd have to reset my modem and router again. I was just wondering if anyone else is having the same issue or what may be causing it? »www.opendns.org :P | |
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cork1958
Cork
join:2000-02-26
Fruitport, MI | Seems to be a rash of sites having dns issues on the various forums I visit.  | |
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u475700
Premium
join:2004-02-16 | I encountered this problem today with another ISP besides Comcast. | |
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B728320
@comcast.net
| I have this problem every night on my Comcast connection. Every other site works including mail.google.com, but nothing that is www.google.com/. It only happens in the evening. It works fine during the day all day every day. It seems odd that it would only not work at night?
Has Comcast posted anything about it? | |
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Comspastic
join:2007-10-22
Seattle, WA | This problem is with Google's DNS Registration. gmail works but google.com cant resolve, IPs. It's been on going for some time now, rumor around is that they had a some hardware get cracked and routing tables rewritten causing major outages. | |
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EG
Ho Ho Ho
Premium
join:2006-11-18
Union, NJ
| Re: Problems loading google (DNS issues possibly?)said by pokesph :once again can't load google or gmail.. this time looks like level3's the issue.. very annoying.. What issue does that trace reveal ?
The destination server was reached. | |
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pokesph
It Is Almost Fast
Premium
join:2001-06-25
Sacramento, CA
clubs:
 ·Comcast
1 edit | Re: Problems loading google (DNS issues possibly?) said by EG :What issue does that trace reveal ? The destination server was reached. it may have been reached BUT it times out in a browser so it's for all intents and purposes dead and unreachable.
it did however fix itself within approx 30 mins. | |
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espaeth
Digital Plumber
Premium,MVM
join:2001-04-21
Minneapolis, MN | Re: Problems loading google (DNS issues possibly?) Can you paste up a trace for when it's working? Does the hop count change? | |
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misbehave
join:2003-09-08
Renton, WA | I am having the same problem....  | |
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| NormanS
Premium,MVM
join:2001-02-14
San Jose, CA
·Pacific Bell - SBC
| Re: Problems loading google (DNS issues possibly?) said by misbehave :I am having the same problem.... So are a bunch of 'at&t Yahoo! HSI' customers...
»Can't access Google domains.
--
Norman
~Oh Lord, why have you come
~To Konnyu, with the Lion and the Drum | |
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xfezz2
join:2005-12-13
Mokena, IL
| Well at first I thought it was just me. I'm kind of relieved that its not. But at the same time it seems like a major issue. Hopefully it will be sorted out soon.
I'm still having issues. Mostly at night and the modem/router reset trick doesn't always work anymore. | |
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gv452
@comcast.net | Same issue. | |
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| scottwed
join:2005-06-23
Lehi, UT
| Re: Problems loading google (DNS issues possibly?) Having the same issue. Using UT Comcast, all other websites work fine. Have to use alternate DNS IP to reach google.com. Problem is lasting hours each night. The problem always includes multiple Reset packets (part of the TCP header).
For some bizarre reason, I noticed that when the google.com problem happens, I can't reconnect my Hamachi VPN client. If the vpn session was already up, then it continues to work. If you reset the VPN connection, it will fail as it rotates through:
bravo.hamachi.cc, charlie.hamachi.cc, delta.hamachi.cc, could be more, I'm guessing there is also an alpha.
Anyone else also having the Hamachi problem at the same time? | |
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| | scottwed
join:2005-06-23
Lehi, UT
| Re: Problems loading google (DNS issues possibly?) Did some more research. I set up a 2 minute interval with wget (A web reques tool), and turned on a packet sniffer to track all Reset packets. I started the trace at ~9:50pm local time, and the problem goes away at 12am local time.
It's very consistent, I receive a properly formed Reset packet, along with another reset packet with a static sequence number. In my case, the static sequence number is 12503. The odd reset packet is sent in reply to web requests to google.com and vpn login requests to Hamachi's login servers. The problem goes away for both sites at ~midnight.
The double reset reply has the signature of the Sandvine Packet shaping appliance, known to be used by Comcast: »torrentfreak.com/images/comcast-rst1.txt
My understanding is that some ATT HSI customers are also experiencing this issue.
For the record, there is no way that this issue is related any type of Wireless encryption protocol used by an end-user or DNS configuration problem. I can consistently reach google.com using an external proxy server, and computers on other ISPs.
I'm starting to think we are getting caught in some sort of private battle between Comcast/ATT and Google. | |
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| | | atreznik
join:2004-08-30
Waterford, MI
| Google & Hamachi VPN timeouts Comcastic HSI in detroit area. scottwed, I'm sitting in the hotel in miami and I wanted to reply so you knew you weren't the only one. Last thursday night (10/25) was when I first noticed issues with the google domain and also VPN connections via hamachi. Fairly similar symptoms; I had it up already (hamachi) and it seemed to work fine, however when Google stopped working I tried restarting my machine and then Hamachi couldn't resolve its servers and the game was over (literally).
I didn't check for reset packets but that theory seems to make sense. I had to go out of town abruptly for work to trinidad and puerto rico and didn't get a chance to flushdns after I changed DNS servers for my router. By the way I agree with you, I have several computers behind a Dlink 1310 with TKIP and wired or wireless, it makes no difference, encryption or otherwise, not that it should. Will try a proxy when I get back as well. BTW, I like your theory about a battle between Comcast/ATT and Google.
I am interested to see someone get to the bottom of this...
Apologies for the incoherent style I'm near exhaustion. Trust me though I'm usually right on the ball.
I'm anxious to get home and see everything working okay and get Hamachi back up. That would be just Comcastic. | |
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| | | | scottwed
join:2005-06-23
Lehi, UT
| Re: Google & Hamachi VPN timeouts Thanks Atreznik, it's good to know that my symptoms are reproducible at other locations. From my location, the routes to Google and Hamachi servers are drastically different once they leave Comcast (Level3 vs ATT). I did not see the issue at all this Sunday.
So I had another thought today, this one doesn't depend upon any paranoia about private company battles. What if the packet shaper simply has a total daily traffic limit per domain? Everyone gets home from work, and starts surfing, the limit gets hit on many, but not all nights.
I'm still trying to identify when the problem starts each night, so if there is a consistent start period, then I'm going right back to 100% paranoia 
One partial argument against the sloppy Sandvine configuration theory; I've noticed that Yahoo is still available throughout the downtime. It also doesn't explain why Hamachi is affected.
If you want full-blown paranoia, one side or the other is trying to force the issue of a "net-neutrality" bill, something that I think is well intentioned but dangerous for the Internet. | |
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MrDaBomb
@netriver.net
| I've been having the same problem the past few months. I talked with Tier 1 support at Comcast last night for about an hour. We reset my modem 4 times, my router, even plugged in my laptop directly to the modem. (It was more to humor the tech lady than any hope of that actually fixing it.) I've got a network engineer calling me back within a day or so. I spoke with my friends that have comcast and they all experience the exact same issue.
I wonder if their packet filter is seeing all the customer requests to google as a DDoS and blocking it for a few hours (like 4). It could be possible.
The great thing is that I can ping google.com, connect to it from my servers (who are on Global Crossing), but all HTTP traffic gets very swiftly reset. | |
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Comspastic
join:2007-10-22
Seattle, WA | I happen to know a couple of IT guy's for google here in Seattle, apparently the issue is caching servers for dns not getting updates on comcasts end. | |
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telcolackey
The Truth? You can't handle the truth
join:2007-04-06
Death Valley, CA
| Re: Problems loading google (DNS issues possibly?) said by Comspastic :I happen to know a couple of IT guy's for google here in Seattle, apparently the issue is caching servers for dns not getting updates on comcasts end. Posts are saying that the problem is more than Comcast's caching servers, so what is Google doing differently that is causing this? | |
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Comspastic
join:2007-10-22
Seattle, WA | Re: Problems loading google (DNS issues possibly?) Google hasn't changed anything. He's saying it's related to root and caching servers, and it doesn't have to do with google at all. Sorry i don't know that much about DNS. | |
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MrDaBomb
@comcast.net
| I'm sure it isn't a DNS issue. Google's web servers respond to straight IP requests. For instance, right now www.google.com resolves as 72.14.253.103 for me (its different depending on your geographical location). If you go to »72.14.253.103/ you'll see the google start page. When Comcast is blocking Google, I get HTTP reset errors from that site, but when I goto another location (SSH Proxy tunnel through a server thats connected through Global Crossing) I can bring up that IP's website fine.
I totally agree its something with Comcast's packet filter. Whether it is intentional or not, it shouldn't be happening, and Comcast should be a LOT faster about fixing this kind of problem. | |
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