Connectivity
Connectivity and managing Your Comcast Business network
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slacy
New Member

Very high latency from SF Bay Area Santa Clara routers

I'm seeing extremely high ping times (avg 4000ms, worst ~18000ms) from my bay area comcast business class connection.  High latency starts with the router at 98.248.40.1 and continues through comcast's internal network.  Here's output from 'mtr' on my local machine to google.com, showing introduced latency from 98.248.40.1 onwards. 

 

 

                                                                   Packets               Pings
 Host                                                            Loss%   Snt   Last   Avg  Best  Wrst StDev
 1. 192.168.1.1                                                   0.0%   103    0.4   0.4   0.3   0.7   0.1
 2. 173-164-205-94-SFBA.hfc.comcastbusiness.net                   0.0%   103    0.9   0.9   0.8   2.3   0.2
 3. 98.248.40.1                                                   7.8%   103  7470. 4320.   9.3 14434 4208. 4. te-0-2-0-5-sur03.santaclara.ca.sfba.comcast.net               7.8%   103  7379. 4247.   9.3 14344 4190.
 5. te-1-1-0-6-ar01.sfsutro.ca.sfba.comcast.net                   7.8%   103  7298. 4178.  12.5 14254 4171.
 6. he-3-10-0-0-cr01.sanjose.ca.ibone.comcast.net                 7.8%   103  7213. 4105.  12.2 14166 4154.
 7. be-10-pe02.11greatoaks.ca.ibone.comcast.net                   7.8%   103  7123. 4212.  15.1 14675 4251.
 8. as15169-3-c.11greatoaks.ca.ibone.comcast.net                  7.9%   102  7032. 4221.  15.0 14583 4217.
 9. 209.85.249.5                                                  7.9%   102  7936. 4181.  14.1 14491 4162.
10. 66.249.95.31                                                  7.9%   102  7841. 4169.  13.9 14400 4107.
11. nuq05s02-in-f8.1e100.net                                      7.9%   102  7749. 4268.  14.0 14307 4115.
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3 REPLIES 3
Trusted Forum Contributor

Re: Very high latency from SF Bay Area Santa Clara routers

Are you only seeing high latency to that destination or are you seeing it to other places as well? You can try opening a request to level 2 with Comcast and ask that they investigate, but in my experience it's a gamble. 

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slacy
New Member

Re: Very high latency from SF Bay Area Santa Clara routers

Its high latency to any host -- all my traffic goes through 98.248.40.1 and it's introducing packet loss & latency. 

 

Does comcast have an online support request form or do you have to call?  Best I could find was "chat with live support" but I've never had a good experience with a system like that. 

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Trusted Forum Contributor

Re: Very high latency from SF Bay Area Santa Clara routers

You can just call their business 800 number and ask a request be sent to level 2 about it. They should be able to see more diagnostic information and put in a work order if needed.

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