DaCarez
join:2002-03-30
Scotch Plains, NJ
1 edit | [Speed] Finally: A True Comcast Network SpeedTest
It takes a little work to find, but it is definitely the best speed test (IMHO of course) available to Comcast users. You need to find one of the 'cdn' server IP's that serve your area. For a little background, the cdn servers serve the 'downloadable_install_wizard.exe' file that is used when signing up and/or changing modem.
A somewhat buggy procedure to find it:
1. ping -a your dhcp server and get the reverse DNS name:
In Central Jersey/Philly that would be:
phil2-pdhcp.inflow.pa.bo.comcast.net
2. If there is a number by the first part of the address (phil2 in this case), remove it, and replace pdhcp with cdn01, cdn02, cdn03, or cdn04 (I don't know if all areas have 4 cdns; some may have more or less)
3. You should now have phil-cdn01.inflow.pa.bo.comcast.net, or whatever your local cdn is.
4. Open Internet Explorer and go to
http://yourlocalcdn/downloadable_install_wizard.exe
This is a 36MB file and should be a decent speedtest.
For those of us in my area, you can use
http://phil-cdn01.inflow.pa.bo.comcast.net/downloadable_install_wizard.exe
without following the above steps.
Please keep in mind that the above method is by no means fool proof and just a suggestion on how to get a true speed reading on Comcast. |
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Anon |  It works! Here is the speedtest for Atlanta, GA:
»atlt-cdn01.s3woodstock.ga.atlant···zard.exe |
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Steely
Dumped Comcast for FiOS
Premium
join:2000-10-15
Princeton Junction, NJ
| reply to DaCarez
Re: [Speed] Finally: A True Comcast Network SpeedT
805 kBps = 6440 kbps |
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Steely
Dumped Comcast for FiOS
Premium
join:2000-10-15
Princeton Junction, NJ
| reply to DaCarez
817 kBps = 6536 kbps |
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Klownicle
join:2005-03-15
Sarasota, FL
| reply to DaCarez
Re: [Speed] Finally: A True Comcast Network SpeedTest
I feel kinda dumb but how do I find out my dhcp server...
Ive got a router and it shows nothing in dhcp, I know via ipconfig /all on my pc it shows my router as the dchp server, so would the dhcp server on my router be the default gateway, if so I get...
cdnt01-a-rtr.******01.**.comcast.net
Help |
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gnomeh6
join:2004-08-13
| reply to DaCarez
Re: [Speed] Finally: A True Comcast Network SpeedT
highest it has ever gone was 750 during earlier tests with the download |
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Wrath
join:2000-10-31
Philadelphia, PA
1 edit | reply to DaCarez
Re: [Speed] Finally: A True Comcast Network SpeedTest
588K/s but I'm only testing about 4200-4400 to speakeasy test site in washington dc.
(in philly) |
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ss4vegito7
join:2004-07-24
Cranbury, NJ | reply to DaCarez
Re: [Speed] Finally: A True Comcast Network SpeedT
Nice find DaCarez! |
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omgwtfbbq
@comcast.net
| reply to DaCarez
I couldn't find anything for my ex-attbi area in Napa, CA but »phil-cdn01.inflow.pa.bo.comcast.···zard.exe still maxes out my 4Mb connection. I'm on the 67.xxx ip and a reverse dns of my dhcp server only shows c-67-xxx-xxx-xxx.hsd1.ca.comcast.net. |
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briangraham
join:2004-10-11
Auburn, WA
| reply to DaCarez
For Seattle-Tacoma area:
»bvrt-cdn01.beaverton.or.bverton.···zard.exe
I got 575Kbs at 75%. Same speed I get with sea.speakeasy.net test. 4.0 teir.
Kuddos! Nice find!!
Brian |
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teck9
join:2002-05-02
Fort Lauderdale, FL | reply to DaCarez
Re: [Speed] Finally: A True Comcast Network SpeedTest
Flordia
»npls-cdn01.bonitasprngs.fl.naple···zard.exe |
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ecko4o8
join:2003-12-08
San Jose, CA | Re: [Speed] Finally: A True Comcast Network SpeedT
san jose , ca ?
how do i find it? |
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MORPHEUS25
join:2002-12-26
Somerdale, NJ | reply to DaCarez
Very nice find indeed.
 |
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dpierce
Lazyrabbitt
Premium
join:2002-09-30
Cream Ridge, NJ
| reply to DaCarez
Very nice find. |
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Kip patterson
Premium
join:2000-10-23
Columbus, OH | reply to Klownicle
Re: [Speed] Finally: A True Comcast Network SpeedTest
Unfortunately, most routers do not tell you what the ISP's dhcp server address is. You will have to temporarily remove the router. |
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Epyon9283
Premium
join:2001-12-26
Dayton, NJ
| reply to DaCarez
I get a connection refused from my dhcp server. Speed still not what it should be. go comcast! |
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Underplay
join:2003-10-19
Tacoma, WA | Re: [Speed] Finally: A True Comcast Network SpeedT
That screenshot of Konsole makes me want to install linux again  |
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Homebrew1994
Betzwood Basement Brewery
join:2001-11-15
King Of Prussia, PA
| reply to DaCarez
Re: [Speed] Finally: A True Comcast Network SpeedTest
To Philly burbs |
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fuziwuzi
Not born yesterday
Premium
join:2005-07-01
Atlanta, GA | reply to DaCarez
Re: [Speed] Finally: A True Comcast Network SpeedT
Getting 553kbps here in Atlanta. I'm on the standard tier. |
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ss4vegito7
join:2004-07-24
Cranbury, NJ | reply to DaCarez
I think we need to get a list going of each areas test links. |
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