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Comcast downgraded/slowed my connection down

there is a chance you could have had a higher tier config file when paying for a lower tier service. it can happen, and most likely someone did some sort of audit in the area and caught it.

you should post your signal levels, to make sure nothing is going on that end. if its just a simple tier change, youll be POL (Pooper Outta Luck, get it?) unless you move up to a higher speed level.

reply to Pooper
Also to add to baineschile 's info, what tier are you supposed to be subscribed to? Just telling us, "Comcast's highest speed consumer package they've offered in my area for years", means nothing to us.

What is the the package as detailed on your bill?

reply to Pooper
No way, that explanation the tech gave you still does not explain those kinds of variations.

Yes, it may be true that you were provisioned on the wrong tier...but not knowing what tier you have been (or at least thought you have been) paying for, I can't speculate on that.

However, download speeds going from the 40s and 50s down to 4 to 6 Mbps constitutes something other than a drop of a tier. Something else is wrong here and I would demand a more rational explanation.

Have you checked your modem's signal levels and SNR lately? If you are running through a router, did you try direct connecting to the modem just in case? If you have not, always do the basic trouble shooting steps before assuming what they tell you is correct.

I like Comcast overall, but find that their support is all over the map, ranging from some very good, savvy folks, to a few that will tell you damn near anything with no idea if they are making any sense whatsoever.

Also, what kind of modem are you using? Is it an older D2 modem? It may be time to replace it if so...
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Deeds, not words

I'm using a Motorola SB6120, yes - checked the router (10x) and even purchased a brand new E4200 (with the same result). The plan I'm subscribed to is the Blast! Which doesn't even give me the 2 second burst like it used to. Anytime I speak with someone at Comcast they tell me something completely different than the last person about what speeds I should be getting. Regardless of what they say, my speed shouldn't have been slowed down (especially below what they claim I'm actually paying for), and I shouldn't have been downgraded without being notified. They never even gave me the opportunity to upgrade or whatever they want to call it, which is flat-out ignorant and unethical.

Here are the signal levels:

Post what amount of bandwidth is shown with Shaperprobe.

»www.cc.gatech.edu/~partha/diffpr···obe.html

reply to Pooper
Tucson JUST got DOCSIS 3 at the end of June. The bootfiles were only 6 mbps and 8 mbps on residential until then. Don't know where your numbers came from. Internally when we got the memo that they'd finally been upgraded there was a big "hallelujah" because we felt bad for people in Tucson. That small group of people are now in DOCSIS 3.

There's even an email that was sent to all Tucson customers letting them know about their speed increases.

reply to Pooper

reply to PeteC2
It's possible its tier related if they put him on a slower basic tier like Economy.

reply to Pooper
My first rule when I see a problem with anything in life, my first act in troubleshooting is to take inventory of any recent changes that have taken place. On a personal level, it could be diet, on a technical level, new software/hardware and so on.

In the last couple of months I have experienced two occasions of diminished Comcast performance that were unrelated.

The first was a new version of a Firewall [ZA and behavior of vsmon.exe in particular on the XP Pro machines] that was installed on 3 computers. Got rid of the software and speeds returned. Used various free utilities and Google to solve that one.

Then, 2 weeks ago speed went to crap. Turned out to be a bad fitting/connection and bad wire. Both less than 5 years old and Comcast installed. Tech replaced both and back to speed.

Prior to tech arriving, cleared areas for access to the wire run, hooked a computer directly to Modem and watched him do his testing. Find this minimizes excuses for not doing things properly or blowing smoke about a problem.

reply to Mike Wolf
So where are you running the speed test to? Have you tried multiple test sites? I have been to calls before where it was simply a problem with the test server they chose to use, went to another nearby server and pegged beyond the subscribes speed, you cannot just trust one test site.

logs from 192.168.100.1 and signal levels please?

reply to PeteC2

reply to flwpwr
The speed tests on the graph were using speedtest.net to the nearest comcast server.

reply to Pooper

There are a bunch of these in the log:

Jan 01 1970 00:00:26 3-Critical R02.0 No Ranging Response received - T3 time-out;CM-MAC=xxxxxxxxxxxxxxxx;CMTS-MAC=xxxxxxxxxxxxxxxx;CM-QOS=1.1;CM-VER=3.0;

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Shaper Detection Module.

Connected to server 38.106.70.149.

Estimating capacity:
Upstream: 2119 Kbps.
Downstream: 5381 Kbps.

The measurement will last for about 2.5 minutes. Please wait.

Checking for traffic shapers:

Upstream: Measurement aborted due to high packet loss rate.

Downstream: Burst size: 634-670 KB; Shaping rate: 5189 Kbps.

For more information, visit: »www.cc.gatech.edu/~partha/diffprobe

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Connected to server 64.9.225.142.

Estimating capacity:
Upstream: 1298 Kbps.
Downstream: 7498 Kbps.

The measurement will last for about 2.5 minutes. Please wait.

Checking for traffic shapers:

Upstream: Measurement aborted due to high packet loss rate.

Downstream: Burst size: 634-670 KB; Shaping rate: 5189 Kbps.

For more information, visit: »www.cc.gatech.edu/~partha/diffprobe

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Connected to server 38.107.216.34.

Estimating capacity:
Upstream: 3131 Kbps.
Downstream: 14093 Kbps.

The measurement will last for about 2.5 minutes. Please wait.

Checking for traffic shapers:

Upstream: Measurement aborted due to high packet loss rate.

Downstream: Burst size: 18667-19103 KB; Shaping rate: 11624 Kbps.

For more information, visit: »www.cc.gatech.edu/~partha/diffprobe

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Connected to server 4.71.254.162.

Estimating capacity:
Upstream: 897 Kbps.
Downstream: 5732 Kbps.

The measurement will last for about 2.5 minutes. Please wait.

Checking for traffic shapers:

Upstream: Measurement aborted due to high packet loss rate.

Downstream: Burst size: 4320-4527 KB; Shaping rate: 2149 Kbps.

For more information, visit: »www.cc.gatech.edu/~partha/diffprobe

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Your test results
Summary Details Advanced
Your system: Mac OS X version 10.7.4
Java version: 1.6.0_33 (x86_64)

TCP receive window: 524176 current, 524280 maximum
0.00322841 packets lost during test
Round trip time: 64 msec (minimum), 673 msec (maximum), 169.03 msec (average)
Jitter: 609 msec
0 seconds spend waiting following a timeout
TCP time-out counter: 577
210 selective acknowledgement packets received

No duplex mismatch condition was detected.
The test did not detect a cable fault.
Network congestion may be limiting the connection.
No network address translation appliance was detected.

0.9882% of the time was not spent in a receiver limited or sender limited state.
0.0% of the time the connection is limited by the client machine's receive buffer.
Optimal receive buffer: 536862720 bytes
0 duplicate ACKs set

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How do I check which configuration file my SB6120 is using?

reply to Pooper
With Shaperprobe, it's looking like a 6/2 config file is in the modem. Call in to query about it or post to Comcast Steve in the CC direct forum.

reply to Pooper
Never mind... Was pointed out that he did post his speed tier.

reply to Pooper

said by Pooper The plan I'm subscribed to is the Blast! [/BQUOTE :

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Ìïëþí ëáâÝ

Thanks... I looked but did NOT see that...

reply to EG