tzr916's profile

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Monday, November 9th, 2020 3:00 PM

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Arris SB8200 only getting 750-800Mbps (SOLVED)

I made the jump to 1GB, purchased a new modem. No dropouts to speak of, just wondering if this SB8200 modem is capable of doing better than 800Mbps (one device hard wired direct)? Or if my signal levels need a bit of tweaking? See attachments/links.

 

NOTE: I have FOUR devices on my coax - Modem, 4K X1 box, and 2x cable card tuners. For the past 3 years they've all been running through a Comscope CSMAPDU9VPI, with terminators on the unused ports. Previously when trying a non-amplified splitter, my cable card Tv signals would be way out of spec, causing tv channels to pixellate and drop out.

 

Modem numbers:

Downstream Power = 9.1 - 12.1 dBmV

Downstream SNR = 40.9 - 41.8 dB

Upstream = 37 - 38 dBmV

 

Cable card tuner example number:

Power = 6.5 - 8.1 dBmV

SNR = 36.2 - 37.5 dB

 

https://postimg.cc/XrLGFd4z

https://postimg.cc/JsMHGPVX

https://postimg.cc/8FCFbcCP

https://postimg.cc/Czjfh9tY

 

 

4 Attachments

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195 Messages

4 years ago


@NoNoBadPuppy wrote:

Plese let me know what you meant when you posted "install the software and run the optimizer on pc"?  I have an SB8200, and am having some issues. 

 

Thanks!

 


Posted earlier in the topic:

...I went back to a website that I have not visited in years and never really put much faith in:

https://www.speedguide.net/analyzer.php

Downloaded the optimizer, ran as administrator, backed up current settings, changed settings to optimal, rebooted PC, ran speed test and now getting 933Mbps!

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