|
Posted by Jim T. on June 29, 2005, 7:34 pm
If you were Registered and logged in, you could reply and use other advanced thread options
wrote:
>Jbob wrote:
>> Well I am not trouble free however......... :-)
>>
>> I do have a few channels on my TVs that I get bleedover from some
>> local stations. I understand that and accept it knowing how many
>> sets I have connected. FWIW, all the wiring was done by me. I
>> purchased my own roll of RG-6, connectors, etc and did it all myself.
>> The one thing I want to change is getting rid of crimp on connectors
>> and going to compression ones. I just need to find a supplier either
>> locally or order online. Eventually I will wire in a power amplifier
>> to power the whole house except for modem of course and have an
>> individual line to each set location.
>> When I first bought this house less than two years ago a new drop was
>> run to my home. They were just out this past week and again replaced
>> it as it was verified as bad again. They were called for a tv signal
>> problem but internet was fine. I thought that might clear up my
>> internet issue but it didn't
>>
>> I am having trouble with my internet connection but it is kinda
>> peculiar. I am on Comcast Gold tier(6000/768). My download speeds
>> are very good. Routinely at 5500+ down with over 6000 quite often
>> however my upload speeds seem to suffer extremely bad at random
>> intervals. I have checked my speeds using various machines,
>> with/without router, and with various OSs even testing using a
>> Knoppix Live Boot CD. I have swapped modems (3 different ones) with
>> no fix. Had a tech show up only to say not much he could do. I know
>> more than him. lol Many times it's as if a switch is thrown and my
>> upload speeds go back up to normal. I test using several SpeakEasy
>> test sites but most of my upload test are done using WS-FTP LE and
>> uploading a file to my Personal Web Space on Comcast. I verify
>> speeds using the upload dialog in WS-FTP and also monitor using the
>> small utility NetPerSec from PCMag. It appears that there is no issue
>> at my home and I am guessing the
>> problem is something with Comcast whether it is with my lines locally
>> or something with the config file that is pushed to my modem from
>> Comcast.
>> I am in the process of finding other local users to see if they
>> suffer from the same issue to either verify it is something locally
>> to me or others as well.
>>
>> So my main reason for asking my original question was to see if it
>> might help by what I had suggested. In reading some other posts on
>> DSLReports it seems I might be better off running my modem off a
>> 2-way and then using another 2-way to go between the upstairs and
>> downstairs sets. Although my modem signal strength appears fine,
>> any little bit might help.
>
>Do your speed tests at 0-dark:30; 4:00am is good since you can guarantee
>that no one else is sharing the line. I've been using www.testmy.net
>for testing. It is less busy and more consistent than speakeasy. Do
>your FTP tests show full upload speed?
>
>Access your modem web interface and report the text for both upstream
>and downstream. You might review the cable modem FAQ at
>www.broadbandreports.com about DOCSIS modem performance standards. FWIW
>(and not all agree with me), upstream power less than 40dBmv is very
>good. Anything above 48-50dBmv upstream is marginal. 55dBmv is max
>power for a DOCSIS modem and on Comcast you should not see this level,
>according to the local techs. Comcast users seldom have downstream
>power or signal to noise issues.
>
>Q
>
FWIW, I just went thru a similar siege of problems. I thought it
started when I installed an SB5100 to replace the RCA I was renting.
I was getting frequent short drops, and finally it got pretty solid.
Turned out that the system upgrades required better signal strengths.
As I reported in another thread here I had a splitter to feed both the
modem and the TV tuner on my video card. The upstream reading was
55dBmV. Someone here said that was too high, and sure enough it was.
The Comcast tech said I had too many splitters (there were at least
three in the chain.) He ran a new line in so that there was only one
splitter and now the reading is 51-52 and it works just fine. Another
responder says that that is too high, but I will not complain for now.
In addition, this problem was not suggested by either the Comcast
online support nor the Motorola support. It was this group that gave
me the lead!!!
| 
Yahoo! 
Google 
Windows Live 
del.icio.us 
digg 
Netscape 
XML site map