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kb0nly

join:2003-07-25
Tyler, MN
Reviews:
·Mediacom

[MN] Slow Downstream, Upstream Ok?

Been getting some weird issues here...

All started out with bad signal levels, yesterday they replaced my drop, they got the signal levels where they should be and the connection hasn't dropped.

Motorola SB6180 DOCSIS 3.0

Downstream Value
Frequency 111000000 Hz
Signal To Noise Ratio 38.9 dB
Power Level 2.9 dBmV

Upstream Value
Channel ID 2
Frequency 32000000 Hz
Power 40.7 dBmV

I have two of this model modem, i have swapped them, no change. Also other customers in this community, eight of which i have seen in person, are also getting slow speeds. The DOCSIS 2.0 modem owners are getting around .3-.5mbps downstream, the DOCSIS 3.0 users are getting around 2-3mbps thanks to channel bonding.

I even went so far as to go to a friends house and swap their RCA DCM425 with my spare SB6180, their speed jumped from .3-.5mbps up to around 2mbps. I then swapped back to their modem and their speed dropped back down to .3-.5mbps. So its easily replicated.

Here is some of my latest speed tests.







The Upstream seems to be ok, its supposed to be 2.5mbps up, and i generally meet that number or even better no problem. The downstream on the other hand sucks. I am paying for 30mbps and i'm getting a tenth of what i should have. If i was at least averaging 20mbps i would be satisfied, but at these speeds the local DSL provider is faster, and thats saying something!!!

wth
Premium
join:2002-02-20
Iowa City,IA

Your ping time to those speedtest servers is way to high.
Run this and post results: »www.pingplotter.com/freeware.html

Your modem stats are good.


kb0nly

join:2003-07-25
Tyler, MN



Speed is back today, ping is where it should be. Looks like they fixed something overnight.


kb0nly

join:2003-07-25
Tyler, MN

Well that was short lived... Speeds went to crap again.

Ping right now is around 130ms on speedtest.net, it tests the ping then it freezes and dies.

So much for using the internet this afternoon.


wth
Premium
join:2002-02-20
Iowa City,IA
Reviews:
·Mediacom

said by kb0nly:

Ping right now is around 130ms on speedtest.net, it tests the ping then it freezes and dies.

Run this and post results: » www.pingplotter.com/freeware.html

kb0nly

join:2003-07-25
Tyler, MN
Reviews:
·Mediacom
reply to kb0nly

Target Name: download.cnet.com
IP: 64.30.224.58
Date/Time: 1/30/2013 10:31:20 PM

1 4 ms [192.168.1.1]
2 9 ms [10.145.12.1]
3 21 ms [172.30.18.25]
4 18 ms [172.30.24.117]
5 17 ms [12.249.235.9]
6 28 ms cr81.mpsmn.ip.att.net [12.122.132.202]
7 26 ms cr2.cgcil.ip.att.net [12.122.153.6]
8 27 ms cgcil03jt.ip.att.net [12.122.84.93]
9 53 ms [192.205.37.174]
10 43 ms te0-3-0-0.ccr22.ord01.atlas.cogentco.com [154.54.5.1]
11 53 ms te0-1-0-3.ccr22.mci01.atlas.cogentco.com [154.54.5.173]
12 64 ms te0-3-0-1.ccr22.dfw01.atlas.cogentco.com [154.54.46.210]
13 69 ms te0-0-0-2.ccr22.iah01.atlas.cogentco.com [154.54.3.178]
14 78 ms te3-1.ccr01.sat01.atlas.cogentco.com [154.54.27.114]
15 95 ms te8-1.ccr01.phx02.atlas.cogentco.com [154.54.80.209]
16 95 ms te2-1.mag01.phx02.atlas.cogentco.com [154.54.85.82]
17 * [-]
18 98 ms [38.104.116.182]
19 87 ms ae2-0.io-phx1-ex8216-1.cnet.com [64.30.227.54]
20 86 ms phx1-rb-gtm2-tron-xw-lb.cnet.com [64.30.224.58]

Ping statistics for download.cnet.com
Packets: Sent = 1, Received = 1, Lost = 0 (0.0%)
Round Trip Times: Minimum = 86ms, Maximum = 86ms, Average = 86ms

Target Name: download.cnet.com
IP: 64.30.224.58
Date/Time: 1/30/2013 10:31:20 PM

1 4 ms 5 ms 2 ms 0 ms [192.168.1.1]
2 9 ms 8 ms 7 ms 11 ms [10.145.12.1]
3 21 ms 17 ms 31 ms 17 ms [172.30.18.25]
4 18 ms 15 ms 21 ms 25 ms [172.30.24.117]
5 17 ms 29 ms 23 ms 75 ms [12.249.235.9]
6 28 ms 34 ms 31 ms 30 ms cr81.mpsmn.ip.att.net [12.122.132.202]
7 26 ms 40 ms 31 ms 27 ms cr2.cgcil.ip.att.net [12.122.153.6]
8 27 ms 40 ms 28 ms 33 ms cgcil03jt.ip.att.net [12.122.84.93]
9 53 ms 42 ms 48 ms 42 ms [192.205.37.174]
10 43 ms 44 ms 42 ms 68 ms te0-3-0-0.ccr22.ord01.atlas.cogentco.com [154.54.5.1]
11 53 ms 58 ms * 54 ms te0-1-0-3.ccr22.mci01.atlas.cogentco.com [154.54.5.173]
12 64 ms 62 ms 69 ms 65 ms te0-3-0-1.ccr22.dfw01.atlas.cogentco.com [154.54.46.210]
13 69 ms 72 ms 91 ms 72 ms te0-0-0-2.ccr22.iah01.atlas.cogentco.com [154.54.3.178]
14 78 ms 110 ms 94 ms 272 ms te3-1.ccr01.sat01.atlas.cogentco.com [154.54.27.114]
15 95 ms 110 ms 93 ms * te8-1.ccr01.phx02.atlas.cogentco.com [154.54.80.209]
16 95 ms * 95 ms 99 ms te2-1.mag01.phx02.atlas.cogentco.com [154.54.85.82]
17 N/A 97 ms 101 ms * vl3510.na41.b022559-0.phx02.atlas.cogentco.com [38.20.54.182]
18 98 ms 92 ms 88 ms 84 ms [38.104.116.182]
19 87 ms 85 ms 97 ms 93 ms ae2-0.io-phx1-ex8216-1.cnet.com [64.30.227.54]
20 86 ms 90 ms 87 ms 85 ms phx1-rb-gtm2-tron-xw-lb.cnet.com [64.30.224.58]

Ping statistics for download.cnet.com
Packets: Sent = 4, Received = 4, Lost = 0 (0.0%)
Round Trip Times: Minimum = 85ms, Maximum = 90ms, Average = 87ms

Target Name: ebay.com
IP: 66.211.160.87
Date/Time: 1/30/2013 10:32:27 PM

1 1 ms [192.168.1.1]
2 8 ms [10.145.12.1]
3 18 ms [172.30.18.25]
4 19 ms [172.30.24.117]
5 16 ms [12.249.235.193]
6 57 ms cr82.mpsmn.ip.att.net [12.122.150.62]
7 48 ms cr1.kc9mo.ip.att.net [12.122.153.66]
8 51 ms cr1.dvmco.ip.att.net [12.122.3.45]
9 44 ms [12.123.38.13]
10 * [-]
11 * [-]
12 * [-]
13 * [-]
14 * [-]
15 * [-]
16 * [-]
17 * [-]
18 * [-]
19 * [-]
20 * [-]
21 * [-]
22 * [-]
23 * [-]
24 * [-]
25 * [-]
26 * [-]
27 * [-]
28 * [-]
29 * [-]
30 * [-]
31 * [-]
32 * [-]
33 * [-]
34 * [-]
35 * [-]

Destination not reached in 35 hops

Target Name: radioreference.com
IP: 174.129.16.232
Date/Time: 1/30/2013 10:32:59 PM

1 1 ms [192.168.1.1]
2 8 ms [10.145.12.1]
3 17 ms [172.30.18.25]
4 35 ms [172.30.24.117]
5 20 ms [12.249.235.193]
6 28 ms cr81.mpsmn.ip.att.net [12.122.132.202]
7 33 ms cr2.cgcil.ip.att.net [12.122.153.6]
8 128 ms cgcil03jt.ip.att.net [12.122.84.93]
9 * [-]
10 * [-]
11 85 ms [67.133.224.194]
12 66 ms [72.21.220.167]
13 74 ms [205.251.245.53]
14 * [-]
15 * [-]
16 * [-]
17 76 ms [216.182.224.212]
18 * [-]
19 * [-]
20 * [-]
21 * [-]
22 * [-]
23 * [-]
24 * [-]
25 * [-]
26 * [-]
27 * [-]
28 * [-]
29 * [-]
30 * [-]
31 * [-]
32 * [-]
33 * [-]
34 * [-]
35 * [-]

Destination not reached in 35 hops

Target Name: paypal.com
IP: 66.211.169.3
Date/Time: 1/30/2013 10:33:47 PM

1 1 ms [192.168.1.1]
2 9 ms [10.145.12.1]
3 27 ms [172.30.18.25]
4 17 ms [172.30.24.117]
5 20 ms [12.249.235.193]
6 45 ms cr82.mpsmn.ip.att.net [12.122.150.62]
7 50 ms cr1.kc9mo.ip.att.net [12.122.153.66]
8 50 ms cr1.dvmco.ip.att.net [12.122.3.45]
9 52 ms [12.123.38.13]
10 50 ms [12.90.113.6]
11 * [-]
12 * [-]
13 * [-]
14 * [-]
15 * [-]
16 * [-]
17 * [-]
18 * [-]
19 * [-]
20 * [-]
21 * [-]
22 * [-]
23 * [-]
24 * [-]
25 * [-]
26 * [-]
27 * [-]
28 * [-]
29 * [-]
30 * [-]
31 * [-]
32 * [-]
33 * [-]
34 * [-]
35 * [-]

Destination not reached in 35 hops


wth
Premium
join:2002-02-20
Iowa City,IA
Reviews:
·Mediacom
reply to kb0nly

said by kb0nly:

Also other customers in this community, eight of which i have seen in person, are also getting slow speeds. The DOCSIS 2.0 modem owners are getting around .3-.5mbps downstream, the DOCSIS 3.0 users are getting around 2-3mbps thanks to channel bonding.

I even went so far as to go to a friends house and swap their RCA DCM425 with my spare SB6180, their speed jumped from .3-.5mbps up to around 2mbps. I then swapped back to their modem and their speed dropped back down to .3-.5mbps. So its easily replicated.

Based on your info and the fact that I see no problems in the pingplotter results, there must be some type of Mediacom channel bonding problem in your area.

kb0nly

join:2003-07-25
Tyler, MN

Seems ok today, i havent run a speedtest as i have been deperately trying to get a carbonite restore of some files on a crashed external hard drive. Its downloading around 400kbps so thats not terrible, but i have done much faster before!