dslreports logo
 
    All Forums Hot Topics Gallery
spc

spacer




how-to block ads


Search Topic:
uniqs
44
share rss forum feed


pflog
Bueller? Bueller?
Premium,MVM
join:2001-09-01
El Dorado Hills, CA
kudos:3
reply to NanoEntity

Re: [Connectivity] PM/Prime Latency / High Packet Loss

Looks like you may need to have a truck roll to balance your signal. The downstream side is sitting very hot at 40 dB (good) but near the high end of the good range for power (8dB, 10 being the max you'd want to see), but your upstream is marginal sitting at 50 dBmv.

How is the modem connected? Is it sitting off of any splitters? Even if you removed a splitter or two to bump the upstream down, then your downstream levels would be out of spec (above 10dBmV).

I'm not a cable tech, but normally when there is a big disparity between upstream and downstream, it requires some re-balancing, which unfortunately you can only accomplish by having someone come out and check your line at the modem, entry point, etc.
--
"I drank what?" -Socrates

NanoEntity

join:2009-04-27
Marathon, FL

2 edits
»forums.comcast.com/t5/Basic-Inte ··· #M166622

Just reset it again... 8% loss.... and seems to go up...

There is only 1 splitter that i can see, and thats in the wall that connects all the cable in the house.

---------------------------------------------------
Downstream Freq/Power: 687.000 MHz 6 dBmV Signal to Noise Ratio: 39 dB Modulation: QAM256

Upstream Freq/Power: 27.900 MHz 49 dBmV Channel Type: DOCSIS 2.0 (ATDMA) Symbol Rate: 5120 kSym/sec Modulation: QAM64

Status System Uptime: 0 days 0h:1m:37s Computers Detected: 1 CM Status: Telephony-AC Power Iso OFF Reg Complete Time and Date: FRI DEC 28 17:03:27 2012
-------------------------------------------------------------
Ping statistics for 74.125.139.139:
Packets: Sent = 440, Received = 403, Lost = 37 (8% loss),
Approximate round trip times in milli-seconds:
Minimum = 28ms, Maximum = 47ms, Average = 29ms

-----------------------------------------------------------------------


pflog
Bueller? Bueller?
Premium,MVM
join:2001-09-01
El Dorado Hills, CA
kudos:3
38 dB / 6 dBmV down

49 dBmV up

are ok...49 is getting close to out of spec as is 6, but assuming no fluctuations, these look ok right now.

You should call and ask for your upstream SNR. Only Comcast can see this. It could be an uSNR issue or there may be some other issue with the line.
--
"I drank what?" -Socrates


Johkal
Cool Cat
Premium,MVM
join:2002-11-13
Happy Valley
kudos:10
How is 6 dBmV & 49 dBmV close to out of spec?


beachintech
There's sand in my tool bag
Premium
join:2008-01-06
kudos:5
reply to pflog
His signals are fine, there is something else going on. Need to start with a tech and go from there.

No response on a trace is not necessarily indicative of a problem, as they continue all the way through. Without being there with a meter it could be your local equipment for all we know.
--
Ex-Comcast Tech at the Beach. I speak for myself, not my former employer.


pflog
Bueller? Bueller?
Premium,MVM
join:2001-09-01
El Dorado Hills, CA
kudos:3
reply to Johkal
said by Johkal:

How is 6 dBmV & 49 dBmV close to out of spec?

He was at 50 and it could be fluctuating, that's my point. If he's swinging up near 52, then it could be an intermittent thing. That's all.

Just saying if it's fluctuating that much, something is going on. He needs a tech visit.
--
"I drank what?" -Socrates


beachintech
There's sand in my tool bag
Premium
join:2008-01-06
kudos:5
He's not on D3, so unless he is fluctuating up above 56 or so on the upstream, he is still within "limits". Anything is possible, but it's most likely either equipment he has locally or an SNR issue a tech will need to resolve.
--
Ex-Comcast Tech at the Beach. I speak for myself, not my former employer.


pflog
Bueller? Bueller?
Premium,MVM
join:2001-09-01
El Dorado Hills, CA
kudos:3
said by beachintech:

He's not on D3, so unless he is fluctuating up above 56 or so on the upstream, he is still within "limits". Anything is possible, but it's most likely either equipment he has locally or an SNR issue a tech will need to resolve.

That's true, I forgot he's D2. Yeah, something else is going on. Definitely a tech visit is advised
--
"I drank what?" -Socrates

NanoEntity

join:2009-04-27
Marathon, FL

2 edits
Called in tech be coming monday...

Reply from 74.125.139.100: bytes=32 time=37ms TTL=47
Request timed out.
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Reply from 74.125.139.100: bytes=32 time=31ms TTL=47
Request timed out.
Reply from 74.125.139.100: bytes=32 time=29ms TTL=47
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Reply from 74.125.139.100: bytes=32 time=28ms TTL=47
Reply from 74.125.139.100: bytes=32 time=32ms TTL=47
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Request timed out.
Reply from 74.125.139.100: bytes=32 time=28ms TTL=47
Reply from 74.125.139.100: bytes=32 time=29ms TTL=47
Reply from 74.125.139.100: bytes=32 time=29ms TTL=47
Reply from 74.125.139.100: bytes=32 time=28ms TTL=47
Reply from 74.125.139.100: bytes=32 time=29ms TTL=47
Reply from 74.125.139.100: bytes=32 time=34ms TTL=47
Reply from 74.125.139.100: bytes=32 time=29ms TTL=47
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Request timed out.
Reply from 74.125.139.100: bytes=32 time=28ms TTL=47
Request timed out.
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Reply from 74.125.139.100: bytes=32 time=36ms TTL=47
Reply from 74.125.139.100: bytes=32 time=29ms TTL=47
Request timed out.
Reply from 74.125.139.100: bytes=32 time=28ms TTL=47
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Reply from 74.125.139.100: bytes=32 time=34ms TTL=47
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Request timed out.
Reply from 74.125.139.100: bytes=32 time=31ms TTL=47
Request timed out.
Request timed out.
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Reply from 74.125.139.100: bytes=32 time=28ms TTL=47
Request timed out.
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Reply from 74.125.139.100: bytes=32 time=34ms TTL=47
Reply from 74.125.139.100: bytes=32 time=29ms TTL=47
Reply from 74.125.139.100: bytes=32 time=32ms TTL=47
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Reply from 74.125.139.100: bytes=32 time=31ms TTL=47
Reply from 74.125.139.100: bytes=32 time=28ms TTL=47
Reply from 74.125.139.100: bytes=32 time=32ms TTL=47
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Reply from 74.125.139.100: bytes=32 time=29ms TTL=47
Reply from 74.125.139.100: bytes=32 time=31ms TTL=47
Reply from 74.125.139.100: bytes=32 time=31ms TTL=47
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Reply from 74.125.139.100: bytes=32 time=34ms TTL=47
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Reply from 74.125.139.100: bytes=32 time=29ms TTL=47
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Reply from 74.125.139.100: bytes=32 time=32ms TTL=47
Request timed out.
Request timed out.
Reply from 74.125.139.100: bytes=32 time=29ms TTL=47
Reply from 74.125.139.100: bytes=32 time=31ms TTL=47
Reply from 74.125.139.100: bytes=32 time=31ms TTL=47
Request timed out.
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Reply from 74.125.139.100: bytes=32 time=33ms TTL=47
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Reply from 74.125.139.100: bytes=32 time=35ms TTL=47
Request timed out.
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Reply from 74.125.139.100: bytes=32 time=34ms TTL=47
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Reply from 74.125.139.100: bytes=32 time=31ms TTL=47
Reply from 74.125.139.100: bytes=32 time=31ms TTL=47
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Reply from 74.125.139.100: bytes=32 time=34ms TTL=47
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Reply from 74.125.139.100: bytes=32 time=29ms TTL=47
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Reply from 74.125.139.100: bytes=32 time=28ms TTL=47
Request timed out.
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Reply from 74.125.139.100: bytes=32 time=36ms TTL=47
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Reply from 74.125.139.100: bytes=32 time=31ms TTL=47
Reply from 74.125.139.100: bytes=32 time=32ms TTL=47
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Reply from 74.125.139.100: bytes=32 time=29ms TTL=47
Reply from 74.125.139.100: bytes=32 time=31ms TTL=47
Reply from 74.125.139.100: bytes=32 time=31ms TTL=47
Request timed out.
Reply from 74.125.139.100: bytes=32 time=31ms TTL=47
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Reply from 74.125.139.100: bytes=32 time=35ms TTL=47
Reply from 74.125.139.100: bytes=32 time=29ms TTL=47
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Reply from 74.125.139.100: bytes=32 time=28ms TTL=47
Reply from 74.125.139.100: bytes=32 time=29ms TTL=47
Request timed out.
Reply from 74.125.139.100: bytes=32 time=29ms TTL=47
Reply from 74.125.139.100: bytes=32 time=29ms TTL=47
Reply from 74.125.139.100: bytes=32 time=31ms TTL=47
Reply from 74.125.139.100: bytes=32 time=28ms TTL=47
Reply from 74.125.139.100: bytes=32 time=29ms TTL=47
Reply from 74.125.139.100: bytes=32 time=32ms TTL=47
Reply from 74.125.139.100: bytes=32 time=29ms TTL=47
Reply from 74.125.139.100: bytes=32 time=28ms TTL=47
Request timed out.
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Reply from 74.125.139.100: bytes=32 time=28ms TTL=47
Reply from 74.125.139.100: bytes=32 time=29ms TTL=47
Reply from 74.125.139.100: bytes=32 time=28ms TTL=47
Reply from 74.125.139.100: bytes=32 time=31ms TTL=47
Reply from 74.125.139.100: bytes=32 time=28ms TTL=47
Reply from 74.125.139.100: bytes=32 time=29ms TTL=47
Reply from 74.125.139.100: bytes=32 time=34ms TTL=47
Reply from 74.125.139.100: bytes=32 time=29ms TTL=47
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Reply from 74.125.139.100: bytes=32 time=52ms TTL=47
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Reply from 74.125.139.100: bytes=32 time=28ms TTL=47
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Reply from 74.125.139.100: bytes=32 time=28ms TTL=47
Reply from 74.125.139.100: bytes=32 time=29ms TTL=47
Reply from 74.125.139.100: bytes=32 time=28ms TTL=47
Reply from 74.125.139.100: bytes=32 time=33ms TTL=47
Reply from 74.125.139.100: bytes=32 time=28ms TTL=47
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Reply from 74.125.139.100: bytes=32 time=31ms TTL=47
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Reply from 74.125.139.100: bytes=32 time=29ms TTL=47
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Reply from 74.125.139.100: bytes=32 time=31ms TTL=47
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Reply from 74.125.139.100: bytes=32 time=29ms TTL=47
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Reply from 74.125.139.100: bytes=32 time=29ms TTL=47
Reply from 74.125.139.100: bytes=32 time=35ms TTL=47
Request timed out.
Reply from 74.125.139.100: bytes=32 time=29ms TTL=47
Reply from 74.125.139.100: bytes=32 time=32ms TTL=47
Reply from 74.125.139.100: bytes=32 time=29ms TTL=47
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Reply from 74.125.139.100: bytes=32 time=29ms TTL=47
Reply from 74.125.139.100: bytes=32 time=33ms TTL=47
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Reply from 74.125.139.100: bytes=32 time=31ms TTL=47
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Request timed out.
Reply from 74.125.139.100: bytes=32 time=29ms TTL=47
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Reply from 74.125.139.100: bytes=32 time=29ms TTL=47
Reply from 74.125.139.100: bytes=32 time=32ms TTL=47
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Reply from 74.125.139.100: bytes=32 time=35ms TTL=47
Reply from 74.125.139.100: bytes=32 time=29ms TTL=47
Reply from 74.125.139.100: bytes=32 time=29ms TTL=47
Reply from 74.125.139.100: bytes=32 time=31ms TTL=47
Reply from 74.125.139.100: bytes=32 time=29ms TTL=47
Reply from 74.125.139.100: bytes=32 time=29ms TTL=47
Reply from 74.125.139.100: bytes=32 time=32ms TTL=47
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Request timed out.
Reply from 74.125.139.100: bytes=32 time=28ms TTL=47
Reply from 74.125.139.100: bytes=32 time=31ms TTL=47
Reply from 74.125.139.100: bytes=32 time=28ms TTL=47
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Reply from 74.125.139.100: bytes=32 time=28ms TTL=47
Reply from 74.125.139.100: bytes=32 time=31ms TTL=47
Reply from 74.125.139.100: bytes=32 time=31ms TTL=47
Reply from 74.125.139.100: bytes=32 time=31ms TTL=47
Reply from 74.125.139.100: bytes=32 time=31ms TTL=47
Reply from 74.125.139.100: bytes=32 time=29ms TTL=47
Reply from 74.125.139.100: bytes=32 time=28ms TTL=47
Request timed out.
Reply from 74.125.139.100: bytes=32 time=29ms TTL=47
Request timed out.
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Reply from 74.125.139.100: bytes=32 time=29ms TTL=47
Reply from 74.125.139.100: bytes=32 time=29ms TTL=47
Reply from 74.125.139.100: bytes=32 time=29ms TTL=47
Reply from 74.125.139.100: bytes=32 time=33ms TTL=47
Reply from 74.125.139.100: bytes=32 time=28ms TTL=47
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Reply from 74.125.139.100: bytes=32 time=31ms TTL=47
Reply from 74.125.139.100: bytes=32 time=28ms TTL=47
Reply from 74.125.139.100: bytes=32 time=31ms TTL=47
Reply from 74.125.139.100: bytes=32 time=32ms TTL=47
Reply from 74.125.139.100: bytes=32 time=29ms TTL=47
Reply from 74.125.139.100: bytes=32 time=33ms TTL=47
Request timed out.
Reply from 74.125.139.100: bytes=32 time=30ms TTL=47
Reply from 74.125.139.100: bytes=32 time=31ms TTL=47
Reply from 74.125.139.100: bytes=32 time=29ms TTL=47
Reply from 74.125.139.100: bytes=32 time=29ms TTL=47

Ping statistics for 74.125.139.100:
Packets: Sent = 732, Received = 611, Lost = 121 (16% loss),
Approximate round trip times in milli-seconds:
Minimum = 28ms, Maximum = 147ms, Average = 30ms

NanoEntity

join:2009-04-27
Marathon, FL
C:\Users\Nano>tracert www.google.com

Tracing route to www.google.com [74.125.137.105]
over a maximum of 30 hops:

1 6 ms tracert www.comcast.com

Tracing route to www.g.comcast.com [69.241.45.4]
over a maximum of 30 hops:

1 tracert www.worldofwarcraft.com

Tracing route to worldofwarcraft.com [12.129.242.22]
over a maximum of 30 hops:

1 1 ms 1 ms 1 ms 192.168.1.1
2 7 ms 8 ms 7 ms 73.199.36.1
3 8 ms 8 ms * te-8-4-ur01.marathon.fl.pompano.comcast.net [68.
85.228.101]
4 15 ms 15 ms * te-0-2-0-8-ar03.northdade.fl.pompano.comcast.net
[69.139.181.209]
5 25 ms 23 ms 22 ms he-2-7-0-0-cr01.miami.fl.ibone.comcast.net [68.8
6.93.81]
6 15 ms 13 ms 13 ms pos-0-2-0-0-pe01.nota.fl.ibone.comcast.net [68.8
6.87.158]
7 * 14 ms 15 ms 192.205.36.169
8 * 93 ms 90 ms cr81.fldfl.ip.att.net [12.122.81.26]
9 89 ms 91 ms 91 ms cr2.ormfl.ip.att.net [12.122.1.45]
10 89 ms 90 ms 91 ms cr1.ormfl.ip.att.net [12.122.5.185]
11 89 ms 92 ms 90 ms cr2.hs1tx.ip.att.net [12.122.1.5]
12 91 ms * 90 ms cr1.dlstx.ip.att.net [12.122.28.157]
13 89 ms 91 ms 89 ms cr2.dlstx.ip.att.net [12.122.1.210]
14 92 ms 91 ms 90 ms cr2.dvmco.ip.att.net [12.122.31.90]
15 93 ms 91 ms 98 ms cr1.slkut.ip.att.net [12.122.30.25]
16 91 ms 95 ms 91 ms cr2.la2ca.ip.att.net [12.122.30.30]
17 * 91 ms 88 ms gar29.la2ca.ip.att.net [12.122.129.241]
18 89 ms 89 ms 89 ms 12-122-254-238.attens.net [12.122.254.238]
19 88 ms 91 ms 94 ms 206.16.68.46
20 * * * Request timed out.
21 * * * Request timed out.
22 * * * Request timed out.
23 * * * Request timed out.
24 * * * Request timed out.
25 * * * Request timed out.
26 * * * Request timed out.
27 * * * Request timed out.
28 * * * Request timed out.
29 * * * Request timed out.
30 * * * Request timed out.

Trace complete.