aliasrlz
Premium
join:2000-09-01
the world
| reply to imrf
Re: [Connectivity] Comcast VS. DSL?
said by imrf  :said by aliasrlz :Confirmation on getting the booster added was also good advice. Actually that is the worst advice that was given. Adding an amp will only create more problems. If you have a signal issue, have a tech come out and get him to see the levels. Posting them here wouldn't hurt either as a few people have asked for them. If you have too much noise in your network then an amp is just going to increase that noise and your problem will just get worse. :o:o:o... this was the advice of the phone tech. We will see if what they changed today fixes the problem. How do you post when things are bad if you have zero connection when things are bad?
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"Long-winded diatribes are not necessary for one-liner comments (regardless of THE POINT). Something some will never get." |
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imrf
Premium
join:2002-06-06
Utica, MI | True, but can you post the signal levels now? It will show us what they are when they "good". They may be borderline then get too low and drop the connection. |
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aliasrlz
Premium
join:2000-09-01
the world
| said by imrf :True, but can you post the signal levels now? It will show us what they are when they "good". They may be borderline then get too low and drop the connection. Sure, since some others claim I don't answer questions, which is crap... Here is the info when it is "working":
Downstream Value
Frequency 711000000 Hz
Signal to Noise Ratio 33 dB
QAM 256
Network Access Control Object ON
Power Level 0 dBmV The Downstream Power Level reading is a snapshot taken at the time this page was requested. Please Reload/Refresh
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imrf
Premium
join:2002-06-06
Utica, MI
 ·WOW Internet and C..
| Can you post the upstream value as well. You SNR is borderline, with 256QAM a tad higher wouldn't hurt, but an amp would make it worse at this point. If you keep getting dropped another call and added pressure will be needed, or a call to the corporate center might be a better route. |
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aliasrlz
Premium
join:2000-09-01
the world
| said by imrf :Can you post the upstream value as well. You SNR is borderline, with 256QAM a tad higher wouldn't hurt, but an amp would make it worse at this point. If you keep getting dropped another call and added pressure will be needed, or a call to the corporate center might be a better route. Here ya go:
Upstream Value
Channel ID 1
Frequency 23984000 Hz
Ranging Service ID 432
Symbol Rate 3.200 Msym/s
Power Level 44 dBmV
Yes, I am going to do that if this "last fix" doesn't stop the intermittent drops...... thanks 
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sortofageek
Premium,Mod
join:2001-08-19
Valhalla Dr
clubs:
·Comcast
Host:
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Distributed Comput..
Linksys
Comcast HSI
Comcast Cable TV
| reply to aliasrlz
said by aliasrlz :How do you post when things are bad if you have zero connection when things are bad? Just a suggestion, it's what I would try to do.
1. Post the info while the connection is up, as you did.
2. Try to get a copy of the signals while the connection is down. Post them when the connection comes up again.
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jbob
Reach Out and Touch Someone
Premium
join:2004-04-26
Little Rock, AR
·Comcast
 ·AT&T Southwest
1 edit | reply to aliasrlz
Yes as "Sortofageek" said. Even though you cannot post when you do not have a connection you can save your signals levels into a wordpad document and simply copy and paste here later.
I actually have a document that I copy and paste my modem signal levels frequently just for comparison purposes. As long as you can access your modem you should always be able to get these values. After all just because you might not be connected to the internet doesn't mean your computer is not working.
And when you say this tech replaced some cable, just where was this cable he replaced?
And when you post your signal levels post the upstream and downstream at the same time like this:
Downstream Value
Frequency 591000000 Hz Locked
Signal to Noise Ratio 35 dB
Power Level -2 dBmV
Upstream Value
Channel ID 2
Frequency 23408000 Hz Ranged
Power Level 42 dBmV
As I said in an earlier post it is very frustrating to get a tech who is clueless. Since you pay for this service they ought to be able to fix these little simple problems. Just remember that just because you get crappy tech support from Comcast doesn't mean DSL will be any better. Just remember I'll bet many DSl or cable users out there probably have issues with their connections as well but are so computer illiterate they have no clue there even is a problem. At least you're smart enough to know better. |
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aliasrlz
Premium
join:2000-09-01
the world
| jbob,
He had some "piece of cable" (threw it away already), and a very old splitter that he replaced. The piece of cable was about 6 in, and had the RF needled on one point. I don't know much more......but he brought both to me and said I could discard/trash them as he replaced them.
Here is the info, together, you requested:
Downstream Value
Frequency 711000000 Hz
Signal to Noise Ratio 33 dB
QAM 256
Network Access Control Object ON
Power Level 0 dBmV
Upstream Value
Channel ID 1
Frequency 23984000 Hz
Ranging Service ID 432
Symbol Rate 3.200 Msym/s
Power Level 40 dBmV
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schja01
I need to get a life.
Premium,MVM
join:2000-04-27
Morton Grove, IL
clubs: 
 ·AT&T U-Verse
·AT&T Midwest
1 edit | said by aliasrlz :jbob, He had some "piece of cable" (threw it away already), and a very old splitter that he replaced. The piece of cable was about 6 in, and had the RF needled on one point. I don't know much more......but he brought both to me and said I could discard/trash them as he replaced them. Here is the info, together, you requested: Downstream Value Frequency 711000000 Hz Signal to Noise Ratio 33 dB QAM 256 Network Access Control Object ON Power Level 0 dBmV Upstream Value Channel ID 1 Frequency 23984000 Hz Ranging Service ID 432 Symbol Rate 3.200 Msym/s Power Level 40 dBmV I wish I had those numbers (I don't) and I get 6mb/386kb reliably.
From memory:
SNR 35
Down -1.2db
Up 45db
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sortofageek
Premium,Mod
join:2001-08-19
Valhalla Dr
clubs:
·Comcast
Host:
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Distributed Comput..
Linksys
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Comcast Cable TV
| Actually, some of us are guessing she would be fine with SNR consistently as high as yours.
A few are thinking the combination of the SNR of 33 dB, QAM 256 and the Motorola SB5120 (known for sensitivity to noise on the line and especially with QAM 256) may be her problem. If she sees a reading of 33 dB when connected, it is entirely possible SNR drops below that at times and that is why she gets disconnnected.
»/faq/7124
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aliasrlz
Premium
join:2000-09-01
the world | reply to schja01
schja01,
I'm on the 8mbit package.......I'll give up the 8M for stability, I would |
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briankelly9
Premium
join:2002-09-11
| reply to aliasrlz
go take a picture of what he replaced outside and post it on here and that will show your connections, type of wire, and splitter. if you had an old junky splitter chances are you have old junky wiring to go with it. u can tell whats what just by the fittings they used. and are you sure there is no other splitter. alot of houses have 1 line ran to the attic and there is another splitter up there. or another behind a wallplate feeding something else. where is your modem located in that house? |
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schja01
I need to get a life.
Premium,MVM
join:2000-04-27
Morton Grove, IL
clubs:
·AT&T U-Verse
·AT&T Midwest
1 edit | reply to aliasrlz
Re: [Connectivity] Comcast VS. DSL?
said by aliasrlz :schja01, I'm on the 8mbit package.......I'll give up the 8M for stability, I would Occam's Razor. Swap the modem.
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