Basic Internet Connectivity And Modem Help

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Taito
Posts: 19
Registered: ‎01-27-2012

Low upload speeds. SB6121

‎05-17-2012 09:09 PM

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My download speed seems to be ok other than extremely slow youtube buffering but the upload speed is very erratic. Sometimes its around 2Mbps and then at times it is around 0.5Mbps.

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Cable Expert
i-am-nerdburg
Posts: 5,204
Registered: ‎06-27-2009

Re: Low upload speeds. SB6121

‎05-18-2012 08:46 AM

We need more information please:

- Post your upstream and downstream signal levels. Click the link or type: http://192.168.100.1 into your browser. We are interested in your power levels (dBmV) and your Signal to Noise Ratio (SNR). You may also want to contact Comcast and ask for your upstream SNR (uSNR) and receive level.
- Post your modem’s error logs.
- Post the make and model of your modem.
- Post the make and model of your router if you have one.
- Let us know if you contacted Comcast or had a tech visit.
- Let us know what the lights on your modem are doing when you are having problems.

- Plug directly into the modem (no router) via ethernet and run ShaperProbe.

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Connection and trouble shooting tips (How to check signal levels.) . Info you should post to get help.
The opinions expressed here are my own and are not sanctioned by my employer.


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