Visitor
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8 Messages
can't get modem to connect docsis 3.1....slow downloads
I'm getting only about 70mbs down, 10 mbs up.....my package is for 300 down.
my arris modem sb8200 shows green lights, and a very occasional flashing blue on the download light....but mostly green
my download power ranges from -9 to -24 dBmV and SNR range between 34-26
are these numbers within spec?
EG
Expert
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108.3K Messages
2 years ago
Please copy all of the text in its entirety of the *Downstream Power Levels*, the *SNR's* (Signal to Noise Ratios), and the *Upstream Power Level* numbers and paste them into your next post.
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user_6aa120
Visitor
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8 Messages
2 years ago
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EG
Expert
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108.3K Messages
2 years ago
The downstream values are horrible ! I'm surprised that you're even able to get online.
In an effort to try to obtain better connectivity, check to see if there are there any excess/unneeded coax cable splitters in the line leading to the modem that can be eliminated/re-configured. Any splitters that remain should be high quality and cable rated for 5-1000 MHz, bi-directional, and no gold colored garbage from Radio Shack, Home Depot, Target, etc. Splitters should be swapped with known to be good / new ones to test.
Also check the coax cable for any damage such as cuts, nicks, abrasions, kinks, sharp bends, etc.
If there aren't any unneeded splitters that can be eliminated and if your coax wiring setup can't be reconfigured so that there is a single two-way splitter connected directly off of the drop from the street / pole with one port feeding the modem and the other port feeding the rest of the house/equipment with additional splits as needed and you've checked all the wiring and fittings for integrity and tightness and refresh them by taking them apart then check for and clean off any corrosion / oxidation on the center wire and put them back together again, then perhaps it's best to book a tech visit to investigate and correct.
Good luck with it !
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EG
Expert
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108.3K Messages
2 years ago
@user_6aa120
Sorry to hear that. I'll see if I can get an official employee to respond to you here in your topic.
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