Comcast Slowdown?

[TeeJay1952]

I am sending this to everyone with Comcast. Are you experiencing a slowdown or an inability to "find" web pages?
If so I have the answer. Comcast switched the DNS servers from in house local to a nationwide server. This is the computer that resolves requests to location of web page. If you set the DNS to one of the ones listed in the attached file and then reboot computer (including turning cable modem on and off) you should get a much faster, more accurate connection.
I am using 66.93.87.2 with 4.2.2.5 as the alternate. System seems very fast.


Here is how:
1. Start
2. Control Panel
3. Network connections
4. Highlight Local Area Network and choose properties
5. Highlight Internet protocol (TCP/IP) and choose properties
6. General Tab 4th button down "Use the following DNS Server"
7. Fill in the provided numbers
8. Turn Computer off including Cable Modem (just unplug it for 5 seconds)
9 Replug modem and turn computer on.

 

[cryptonomicon]

heh.

As most people SHOULD already know, using comcast's default DNS servers are a joke.

Switch to Sprint's backbone DNS servers immediatly, or something else.

I use:

4.2.2.1
4.2.2.2

 

[SVT Cobra]

hmmm ive never seen this before...

id like to get more input before i do it...what am i doing exactly... im a major network n00b..

 

[aplefka]

I used 4.2.2.1 and 4.2.2.2 til 4.2.2.1 went down last month or so. .2 and .3 for me all the time, never have any issues.

Although I did notice a slowdown the other night.

 

[SLCentral]

I've been using 4.2.2.2 and 4.2.2.3, yet I still get speeds of around 200kbps down, when I should be getting at least 3Mbps. Goddamn you Comcast.

 

[BlueWeasel]

I've been using Comcast for almost 2 years now, but have never tinkered with the DNS settings and just left it at the default.

I've also not noticed any slowdowns, so would it be benefictial to change these settings?

 

[Chapbass]

Should we change this in the router if were behind a router?

I'm just using linksys' 4 port wireless router, but it makes sense that the dns wouldbe in the router, right?

 

[FlyingPenguin]

COMCAST IS DOING MAINTENANCE ON THEIR DNS SERVERS THIS WEEKEND. Don't reset or power cycle your modem this weekend and you'll be fine.

Don't change your DNS server settings unless you have a problem. If you have a problem then try an alternate DNS for the weekend. Switch it back Monday.

 

[corkyg]

No apparent problems here in Arizona with Comcast. I just ran a broadband speed test to L.A., and it showed 2910 down and 704 up. No complaints here. Another (CNET) test showed 4662.9 down.

 

[TeeJay1952]

Not about speed. It was "Not Finding ***" 2 or 3 retries and it would connect. When I checked speeds they were always top drawer. But no home page or no Cnet or not being able to connect to mail server without several tries.

 

[FlyingPenguin]

I just ran a broadband speed test to L.A., and it showed 2910 down and 704 up. No complaints here. Another (CNET) test showed 4662.9 down.

DNS issues will NOT affect your UL/DL speed. It only slows your browsing because it takes longer to do an IP address lookup from the DNS server. Performing a bandwidth test won't tell you if your DND server is slow.

 

[RocknTrixi]

I have Comcast and everything is normal. It must be your area.

 

[FlyingPenguin]

Everything will be fine as long as you don't restart your modem this weekend.

 

[imported_itr]

just ping your current dns ip and see which responds faster. eg. ping 4.2.2.1 and ping <comcast dns>