Slow transfers and buffering issues (Youtube, etc) During Evening Hours

Some other links with basically the same issue: https://www.reddit.com/r/Comcast/comments/3dwonq/speed_testlatency_issue/

If you're only seeing issues during peak time it's pretty much guaranteed to be some type of capacity issue. Though, 2-3 months is a long time to be seeing problems like that. Just to be on the safe side, lets have you pull your modem signal levels while the connection is working properly and when it is experiencing problems. http://forums.businesshelp.comcast.com/t5/Connectivity/Connection-Troubleshooting-Tips/m-p/25861#U25861

Starting with the signal when I'm having the slowness happening during the evening/night:

Downstream:

Upstream:

Anything look off? I'm running the netgear CG3000DCR gateway w/static.

I'll edit this once I post when the speeds are normal.

I am currently having the same issues.  Right around 6pm, i'm getting 400Kbps-600Kbps connection speed to Youtube, while my internet tests are still showing 80 down 15 up.

If it is only Youtube that is slow during the evening, and every other site performs normally, then the problem is likely one between Comcast and Youtube. If this is the case, then unfortunately there is little you can do from your end.

Your signal levels look fine.

Yea, from what I have been able to figure out, Youtube is the only site where I am seeing this problem.  I'll try to figure out if there are any more symptoms i can pinpoint.

It's not only youtube, but seems any site/route that goes through ntt.net also (from my testing).

I have a small cheap webhost based in NL/Europe area and pulling files from it between the evening hours and into the morning are near impossible. This has been ongoing for months, the service provider of my site says there are no issues and other comcast users are reporting the same. Seems to be bad peering? This needs to be looked at. this is something really wrong with going through the bay area: http://downdetector.com/status/comcast-xfinity/map/

This service is unusable and I'm paying the business price? Can I get a Comcast rep to have someone help me with this?

There's something going on with routes through the bay area here every evening (tracert to youtube.com which has the same slowness every evening between 5-9pm:

 3     8 ms     8 ms     7 ms  96.120.90.29
  4     8 ms     7 ms     8 ms  te-0-7-0-3-sur03.fairfield.ca.sfba.comcast.net [68.85.102.61]
  5    10 ms     9 ms    10 ms  be-203-rar01.rohnertpr.ca.sfba.comcast.net [68.85.57.97]
  6    12 ms    12 ms    13 ms  hu-0-18-0-3-ar01.santaclara.ca.sfba.comcast.net [68.85.154.53]
  7  2998 ms     *        *     be-33651-cr01.sunnyvale.ca.ibone.comcast.net [68.86.90.93]
  8    13 ms    13 ms    13 ms  he-0-11-0-1-pe02.529bryant.ca.ibone.comcast.net [68.86.86.146]
  9    66 ms    63 ms    55 ms  66.208.228.70
 10    17 ms    18 ms    13 ms  72.14.232.138
 11    18 ms    15 ms    17 ms  66.249.95.29
 12    13 ms    13 ms    12 ms  nuq05s01-in-f9.1e100.net [74.125.239.105]

And here is the tracert to youtube.com once the connection resumes to normal speed:

  3     7 ms     8 ms     7 ms  96.120.90.29
  4    35 ms     9 ms    13 ms  te-0-7-0-3-sur03.fairfield.ca.sfba.comcast.net [68.85.102.61]
  5    10 ms     9 ms    13 ms  be-203-rar01.rohnertpr.ca.sfba.comcast.net [68.85.57.97]
  6    14 ms    12 ms    19 ms  hu-0-18-0-2-ar01.santaclara.ca.sfba.comcast.net [68.85.154.49]
  7    13 ms    12 ms    19 ms  be-33651-cr01.sunnyvale.ca.ibone.comcast.net [68.86.90.93]
  8    46 ms    13 ms    16 ms  he-0-10-0-0-pe02.529bryant.ca.ibone.comcast.net [68.86.86.26]
  9    12 ms    12 ms    13 ms  66.208.228.70
 10    12 ms    17 ms    12 ms  72.14.232.138
 11    13 ms    13 ms    13 ms  66.249.95.29
 12    12 ms    17 ms    12 ms  nuq05s01-in-f8.1e100.net [74.125.239.104]

Would this at all indicate that there is something going on with the router in sunnyvale? I'm talking not only about the slow loading of videos, but even slow loading of the youtube.com site.

Please check your inbox concerning this issue.