lordz
join:2003-01-02
San Francisco, CA
 ·Comcast
4 edits |  Near 56k speeds in Davis, CA
Hey, I'm in Davis, CA and I need help figuring out why I'm getting speeds so low. It's been slow ever since I got it a few weeks ago, and now it's at the point where I can barely get work done because the net is so slow. I use an DCM245 RCA modem coupled with a Linksys WRT54G. I noticed that my signal/power levels are well out of the optimal range as prescribed by this link: »/faq/7124.
Speedtest:
2005-10-16 23:01:19 EST: 188 / 186
Your download speed : 192919 bps, or 188 kbps.
A 23.5 KB/sec transfer rate.
Your upload speed : 191133 bps, or 186 kbps.
Tweaktest:
»/tweakr/···a=normal
Traceroute to Comcast.net (I'm connected wirelessly):
Tracing route to comcast.net [63.240.76.72]
over a maximum of 30 hops:
1 1 ms 4 ms 1 ms 192.168.1.1
2 157 ms 613 ms 87 ms 10.184.16.1
3 1233 ms 324 ms 94 ms 12.244.16.33
4 433 ms 102 ms 123 ms 12.244.69.197
5 763 ms 132 ms 94 ms 12.244.69.201
6 82 ms 408 ms 406 ms 12.127.32.85
7 1036 ms 267 ms 162 ms tbr1-p012301.sffca.ip.att.net [12.123.13.173]
8 2126 ms 375 ms 332 ms tbr1-cl1.cgcil.ip.att.net [12.122.10.5]
9 156 ms 359 ms 100 ms tbr1-cl14.n54ny.ip.att.net [12.122.10.1]
10 823 ms 333 ms 112 ms 12.122.81.1
11 428 ms 351 ms 151 ms mdf1-gsr12-2-pos-7-0.nyc3.attens.net [12.122.255
.162]
12 * 426 ms 378 ms sccsbix12-1-4.attbi.com [63.240.64.46]
13 * * * Request timed out.
14 * * * Request timed out.
15 601 ms 153 ms 124 ms www.comcast.net [63.240.76.72]
Trace complete.
Diagnostics:
Thomson RCA Modem
Status Code:
Operational
Software Version:
ST.24.0C.20
Software Model:
0719
Bootloader:
04.01
Cable Signal Details
Forward Path:
Signal Acquired at 554.960 MHz
SNR: 29.9 dB
Received Signal Strength: -20.7 dBmV
Micro-Reflections: 24 dBc
Modulation: 256 QAM
Return Path:
Connection: Acquired
Frequency: 33 MHz
Power Level: 55.0 dBmV
Channel ID: 1
Modulation: 16 QAM
Data Service Details
Provisioned Address: Yes
Provisioned Time: Yes
Provisioned Configuration: Yes
Registered: Yes
BPI: Enabled
Thanks for the help in advance guys  . |
|
mrweirdo
join:2004-09-12
Roseville, CA
1 edit | ya it sure does look like you have a signal problem so you might want to try and eliminate spliters or check all your cable connections. If that doesnt work it might be time to request a truck roll from comcast. I can tell you that Power Level 55.0 dBmV of is definately high. I had mine get up to 53 on upstream side then my sb5100 modem could no longer connect. We had to have a tech come out and replace some spliters and conections from the street on in to fix the problem. |
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lordz
join:2003-01-02
San Francisco, CA
·Comcast
1 edit | reply to lordz
Well I removed the only splitter the modem was connected to and I got these results. The numbers are now more respectable. However, the results on the speedtests prove to be no different! The upload is always consistent and reaches the maximum advertised thoroughput. I also have to add that my downstream reaches near 2 mbit if I use a download manager to multi-thread my downloads. Single threaded tasks like web surfing only exhibit normal speeds 
Forward Path:
Signal Acquired at 555.013 MHz
SNR: 34.6 dB
Received Signal Strength: -13.2 dBmV
Micro-Reflections: 24 dBc
Modulation: 256 QAM
Return Path:
Connection: Acquired
Frequency: 33 MHz
Power Level: 52.0 dBmV
Channel ID: 1
Modulation: 16 QAM
Speedtest:
2005-10-17 03:00:58 EST: 88 / 310
Your download speed : 90190 bps, or 88 kbps.
A 11 KB/sec transfer rate.
Your upload speed is much faster than down.. have you tweaked?
Your upload speed : 317704 bps, or 310 kbps.
Comcast has given me the runaround many times...missed appointment dates and a million transfers on the phone... a truck roll is the last thing I want to do! |
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kegwin
Premium
join:2005-10-12
Davis, CA
| I have Comcast in Davis and have noticed that I have been having trouble since apartment turn over ended. I have had two Comcast techs out, a line tech, and have spoken with an engineer. I guess south Davis is a little overloaded with all the apartment complexes that it has. I just talked to the engineer last night; Comcast gave me a pager number to dial when my pings get over 100ms, and he had talked to one of the "network" guys as he called it. The network guy told the engineer not to bother coming out to my apartment because they are aware of the issues that we have been having. From my research on the Comcast network in Davis I have found out that last October they split the nodes up. Previously they only had one, they split that to three and I am assuming that they will be splitting them up again. I asked the engineer if he had an ETA on the fix, and he didn’t have the slightest clue. But he said he would give me a call when he found out more information. |
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kegwin
Premium
join:2005-10-12
Davis, CA
| BTW, I called today to see if I could have someone tell me if/when the problem would be fixed. No answer to that but, I told them that I am not going to pay for the service and the put in a request for reimbursement. I recommend everyone in Davis that is having this problem do the same. Money talks.... |
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dka69
@phoenix.com | reply to lordz
Its a statewide issue..
»[Connectivity] Major Slow Down in San Jose, CA? |
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eatnaders
join:2005-04-07
Mount Laurel, NJ | reply to lordz
PM me your Modem MAC Address. Your modem needs a code upgrade. |
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kegwin
Premium
join:2005-10-12
Davis, CA
| reply to lordz
What part of Davis do you live in? I live on Drew Cir, which is right off of Cowell BLVD. I found out today that it is our node being overloaded. We have over 300 HSI subscribers on our node (DA21D). They are planing to split it. The tech that I talked to today told me to give it until next Friday. I told him that I could not have the latency due to work. So if it is not fixed by Friday I suppose I will be going with DSL Extreme. |
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lordz
join:2003-01-02
San Francisco, CA | reply to lordz
I live in Allegre....my buddies over at Sharps & Flats are having the same problem. Maybe I should call Comcast and tell em I won't pay either  |
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topgun68
join:2003-05-08
Fort Wayne, IN | I had the same problem the last 7 yrs. Fastest I ever had was 477k per second. I have the Comcast 6MB per second download. |
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kegwin
Premium
join:2005-10-12
Davis, CA
| reply to lordz
Yea, I live in Sharps and Flats. Mainly use my connection for business. I managed to get the tech that came out the other day to give me a second month free. Keep telling them you wont pay till it is fixed. I recommend that everyone that is having an issue call them. Tell them that you are having trouble with your HSI service and you want a free month. Same thing next month. So on and so forth. |
|
Azera
@comcast.net
| reply to lordz
I got hooked up two weeks ago at my new apartment. My connection was chugging along at the advertised rate until this afternoon when it suddenly dropped to dial-up speeds. I hope this won't be chronic like everyone else is indicating. I live on Guava Lane.
As a side note, it took them nearly a month to get a tech out to hook me up. Are they short on manpower or something? |
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lordz
join:2003-01-02
San Francisco, CA
·Comcast
| reply to lordz
Holy sh**!,
Tonight, the speeds dropped BELOW 56k. Check this tracert. I cannot use the Internet AT ALL. It took about 30 seconds to load DSLR.....what's going on???!!
>tracert comcast.net
Tracing route to comcast.net [204.127.195.15]
over a maximum of 30 hops:
1 2 ms 1 ms 1 ms 192.168.1.1
2 898 ms 497 ms 860 ms 10.184.16.1
3 * 181 ms 24 ms 12.244.16.33
4 344 ms 110 ms 418 ms 12.244.69.197
5 * 1105 ms 153 ms 12.244.69.185
6 * * * Request timed out.
7 * 39 ms * idf22-gsr12-1-pos-6-0.rwc1.attens.net [12.122.25
5.222]
8 118 ms * 350 ms rwcsbix11-1-6.attbi.com [63.241.85.238]
9 * * * Request timed out.
10 * * * Request timed out.
11 222 ms 630 ms 239 ms www.comcast.net [204.127.195.15]
Trace complete.
Tracing route to comcast.net [204.127.195.15]
over a maximum of 30 hops:
1 1 ms 1 ms 1 ms 192.168.1.1
2 81 ms * 379 ms 10.184.16.1
3 685 ms * * 12.244.16.33
4 723 ms * 2030 ms 12.244.69.197
5 19 ms 446 ms 781 ms 12.244.69.185
6 460 ms 329 ms * 12.127.32.85
7 * * 309 ms idf22-gsr12-1-pos-6-0.rwc1.attens.net [12.122.25
5.222]
8 52 ms 29 ms * rwcsbix11-1-6.attbi.com [63.241.85.238]
9 * * * Request timed out.
10 * * * Request timed out.
11 * * 409 ms www.comcast.net [204.127.195.15]
Trace complete.
>ping -n 10 comcast.net
Pinging comcast.net [204.127.195.15] with 32 bytes of data:
Reply from 204.127.195.15: bytes=32 time=228ms TTL=54
Reply from 204.127.195.15: bytes=32 time=891ms TTL=54
Reply from 204.127.195.15: bytes=32 time=31ms TTL=54
Reply from 204.127.195.15: bytes=32 time=198ms TTL=54
Request timed out.
Reply from 204.127.195.15: bytes=32 time=311ms TTL=54
Reply from 204.127.195.15: bytes=32 time=1208ms TTL=54
Reply from 204.127.195.15: bytes=32 time=57ms TTL=54
Request timed out.
Request timed out.
Ping statistics for 204.127.195.15:
Packets: Sent = 10, Received = 7, Lost = 3 (30% loss),
Approximate round trip times in milli-seconds:
Minimum = 31ms, Maximum = 1208ms, Average = 417ms |
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ftthz
If love can kill hate can also save
join:2005-10-17 | reply to lordz
... the comcastic horror stories ... if it doesn't work might wanna think of switching to something more stable |
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fatjack
@comcast.net
|  reply to lordz
I live with 4 others in Davis, CA on the 6 mbps down / 768 kbps upload service and I have always been able to upload at near 768k speeds. But the download has been down to 150 - 300 kbps recently. This is after I unplugged everyone and just had one computer hooked up to the modem. Last night someone was downloading some Anime averaging 100 kilobytes per second and I ran a dslreports test from Megapath in SF, CA. It was downloading at 2.5 megabits down while that housemate was downloading the Anime. I think either Comcast fixed the slowdown or everyone in town went home for the weekend. We'll see. |
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lordz
join:2003-01-02
San Francisco, CA
·Comcast
| I get just a little over 4 Mbps if I use a download manager. That's more than sufficient for me....around 540 KBps. Lots of people went home for the weekend so it's still too early to tell . |
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kegwin
Premium
join:2005-10-12
Davis, CA | Hey guys,
I just got off the phone with comcast. I got a hold of one of their engineers and he told me that they "plan" on splitting our node DA21D next week. Now that is not for sure. But it is most likely going to happen. |
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fiberguy
My views are my own.
Premium
join:2005-05-20
| said by kegwin  :Hey guys, I just got off the phone with comcast. I got a hold of one of their engineers and he told me that they "plan" on splitting our node DA21D next week. Now that is not for sure. But it is most likely going to happen. While it sounds good that they will work to split the node, I really doubt your spoke to one of the engineers. So, why do I say this? So you don't hold your breath on that information alone.
The plant operations people don't speak to customers. |
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fatjack
@comcast.net |  reply to lordz
OH JEEZ. Yeah, it has not been fixed. It is really slow. Getting 400 kilobits per second max. Mostly getting around 200-300 kilobits per second. I have not called them yet. I will call them tommorrow. |
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fatjack
@comcast.net | reply to lordz
Update: It is still slow |
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