I'm really, really pissed!

[OverVolt]

It's almost like they replaced the coxial with two fisher price plastic cups and a string. I went from pulling 500kb/s+ to 50kb/s. 4mb to 350kb. I am pissed as hell, i pay a decent amount of money for the speed ($42 for 4mb versus $24 for 1.5mb) I've been getting disconnects, packetloss, dropouts, downtime, and worst of all EXTREME SLOWNESS. I even had a comcast tech come over the he said some BS like "Well that splitter was cutting the signal down too much." even though it was only on 7.0db loss total overall for that line, splitter my #$^@!#$^. Brings it down to 3.5db loss, and the problms got WORSE. So, im not sure what to do besides cancel this shizzat.

Advice?

[/lamerant]

 

[rudeguy]

do you live in an apartment or a house?

 

[aplefka]

Comcast sucks. I hate them too but it's the cheapest solution around here.

 

[FoBoT]

try a different network card, sometimes they go bad

 

[OverVolt]

Originally posted by: GoodDad
do you live in an apartment or a house?

house, and nothing has been done recently (aka the coax wires have been untouched) that would explain the suddenly craptacular service.

Originally posted by: FoBoT
try a different network card, sometimes they go bad

Yea, only it's the same for all my computers. Maybe router, i will try standalone, but then i will probably need some special software (ugh).

 

[rudeguy]

Originally posted by: OverVolt

Originally posted by: GoodDad
do you live in an apartment or a house?

house, and nothing has been done recently (aka the coax wires have been untouched) that would explain the suddenly craptacular service.

it has to be something simple. I had the same problem and it was just a bad coax. Hopefully yours will be an easy fix too!

 

[OverVolt]

Hmmm, gooddad, any tips for trying to systematically find the problem? i really don't want to trace it all the way to the attic, then to outside. Where was the bad wire you found it, and what did it look like(frayed, damaged shielding ect?) I had the comcast tech install my line since i didn't want to really fool with it on my own. By the time you factor in the money you spent on mistakes, and time/effort it is usually worth it to hire the techs.

time to read up at dslreports.

edit: this is odd too, but my tv reception is 100% A-OK, maybe that narrows down the problem area? or do TV's just have more tolerance to line crappness.

 

[Wag]

Call up and ask for a mgr.

It took me 10yrs but I finally got them to rewire my squirel chewed lines with RG6.

 

[sharkeeper]

What modem do you have?

Can you reach this page?

If you can, post your downstream, upstream levels and QAM if shown.

 

[Toastedlightly]

Actually, you can check your signal strength. If you have a sharkfin, type in 3comcablemodem, and it gives you a diagnostic chart. Look up your own if you can't find that.

 

[Twista]

Originally posted by: sharkeeper
What modem do you have?

Can you reach this page?

If you can, post your downstream, upstream levels and QAM if shown.

Yes, i can reach this page.

Frequency 705000000 Hz Locked
Signal to Noise Ratio 36 dB
QAM 256
Network Access Control Object ON
Power Level -2 dBmV
The Downstream Power Level reading is a snapshot taken at the time this page was requested. Please Reload/Refresh this Page for a new reading

 

[dartworth]

Originally posted by: sharkeeper
What modem do you have?

Can you reach this page?

If you can, post your downstream, upstream levels and QAM if shown.

what should they read?

 

[rudeguy]

Originally posted by: OverVolt
Hmmm, gooddad, any tips for trying to systematically find the problem? i really don't want to trace it all the way to the attic, then to outside. Where was the bad wire you found it, and what did it look like(frayed, damaged shielding ect?) I had the comcast tech install my line since i didn't want to really fool with it on my own. By the time you factor in the money you spent on mistakes, and time/effort it is usually worth it to hire the techs.

time to read up at dslreports.

edit: this is odd too, but my tv reception is 100% A-OK, maybe that narrows down the problem area? or do TV's just have more tolerance to line crappness.

I live in an apt so comcast came out and found the bad line. Aparently someone had switched mine with some crap one. The TV thing would depend on what size and quality of a TV you have.

 

[OverVolt]

Tx Power 50.5 dBmV
Rx Power -3.9 dBmV
Downstream SNR 32.2 dB
Tx Frequency 30000000 Hz
Rx Frequency 579000000 Hz

50.5dBmV seems high to me. These were all the stats it would give me.

 

[Twista]

Originally posted by: OverVolt

Tx Power 50.5 dBmV
Rx Power -3.9 dBmV
Downstream SNR 32.2 dB
Tx Frequency 30000000 Hz
Rx Frequency 579000000 Hz

50.5dBmV seems high to me. These were all the stats it would give me.

what modem do you have?

 

[scorpmatt]

i had a major problem with slowness and what not with comcast, the tv was even starting to show signs of screwyness, after 3 days of badgering comcast, we had a tech come out and say that he needed to boost the signal by 15%. why couldn't they tell me that from the main station?

 

[OverVolt]

Terayon Cable Modem

 

[sharkeeper]

Your levels are fine.

Your return is acceptable. Generally, levels up to +55dBmV are OK.

Typical Ranges:

SNR =30 dB
TX (return) =55 dBmV
RX (downstream) -15 to +15 dBmV

The ideal RX is 0dBmV, higher is NOTnecessarily better. As a matter of fact some modems will drop frequently if the incoming signal is consistently 15 dBmV or higher!

A good SNR is 36dB. Yours is getting close to the bottom.

 

[dartworth]

SNR 34.1 dB
Downstream Power -7.9 dBmV
Upstream Power 44.3 dBmV