What are Uncorrectables on modem?
Uncorrectable is sort of a loss or drop in the signal due to some reason that you need to fix. If you are seeing an uncorrectable on your modem, then it means that you will have to fix this. Optimally, the modem fixes the errors on the signal on its own and you will not have to worry about that on your own.
Should my downstream bonded channels be locked?
Acquire Downstream Channel: This should say “Locked”, “OK” or similar. This means your modem found the frequency with which to receive information from the internet. There should always be at least 1 channel acquired with a DOCSIS 1.1 or 2.0 modem.
What should my cable modem signal levels be?
Ideal levels are approximately 40 to 50 dBmV for single channels, 37 to 48 dBmV each for 2 to 4 channels. The Signal to Noise Ratios should also all be within three dB of each other. However, for power level -15 to -6 dBmV the SNR should be 33 dB or higher and for -6 to +15 dBmV the SNR should be 30 dB or higher.
What should the SNR be on a cable modem?
SNR is best over 30, (the higher the better, might work well with as low as 25 at times). Anything less than 25 will cause dropped connections, packet loss, slow transfers, etc.
How many downstream channels should be locked?
Ideal levels are approximately 40 to 50 dBmV for single channels, 37 to 48 dBmV each for 2 to 4 channels. In summary, you have a possible connection problem if any of these conditions is true: No downstream channel is locked.
How do I check my Comcast signal strength?
How to Check Signal Strength on Comcast Internet
- Open your Web browser. Clear the current homepage address from your address bar.
- Type “192.168. 100.1” in the address bar and press the “Enter” key.
- Click the “Signal” tab.
- Look at the “Power Level” in the Downstream section.
- Find “Power Level” in the Upstream section.
How do I check the signal strength on my Comcast modem?
Cable Signal Strength
- Use the arrow buttons on the remote to highlight Low Signal Indicator.
- Press OK (or press the raised button on the center of the directional pad if your X1 remote does not have an OK button) to toggle the feature on.
How do you fix SNR problems?
Fixing SNR Issues
- Remove Extra WiFi networks. This is especially true if this is a business environment.
- Check for “Noisy” devices. Take a look at the devices around the WiFi router.
- Turn off unneeded signals. Some routers support multiple bands in the 2.4 GHz and 5 GHz range.
What is a good SNR level?
Generally, a signal with an SNR value of 20 dB or more is recommended for data networks where as an SNR value of 25 dB or more is recommended for networks that use voice applications.
What do t3 and t4 timeouts mean?
They are typically displayed due to an issue in your wiring, bad cables, Bad node, Bad signal from your ISP, wrong configuration in ISP CMTS/Headend, plant noise, Signal interference, and many other possibilites. …
What does total uncorrectable codewords mean on Comcast Xfinity?
And you guessed it — “Total Uncorrectable Codewords” are the number of codewords that your modem couldn’t correct. The numbers are cumulative, so in order to use this as a diagnostic tool, you would first rest your modem, then watch for new errors.
Is the number of uncorrectables a big deal?
The number of uncorrectables when compared to correctables shouldn’t be causing any issues. Are you having any issues with your Internet connection? Generally this is something I would look at as a percentage. If you transferred 1000 frames then 500 uncorrectable frames is a big deal.
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What do codewords and uncorrectables have to do with?
Just curious if the amount of correctables/uncorrectables that I’m having are within what they are supposed to be. Codewords have to do with forward error correction (FEC). Cable uses what is known as a Reed-Solomon (RS) encoder or interleaver to inject codewords or blocks of RS data which allow malformed packets to self-correct.
