vuk79's profile

Regular Visitor


2 Messages

Fri, Jun 5, 2020 3:00 PM

New Arris SB8200 (replaced Netgear CM400) -- Incompatible SW File from upstream fw push

Howdy!  I just purchased a SB8200 to replace an aging and dying Netgear CM400.  Activation went fine, but I see this in the log:


6-5-2020, 14:22:39 Error(4) "SW upgrade Failed after download - Incompatible SW file"
6-5-2020, 14:22:38 Notice(6)

"SW Download INIT - Via Config file"


The modem is currently on firmware D31CM-PEREGRINE- 


The speeds I'm getting are slower than what I was getting before (only about 75 Mbit down / 5 up -- before I was getting ~150 Mbits down).


Anything that I can try?  Thanks!


Regular Visitor


2 Messages

1 y ago

Hmm. I also have extremely low upstream power levels; I'm now reading that there are issues with the SB8200 and xfinity due to a disagreement in upstream level limits.  This could be related to not having the correct firmware though?


Channel Channel ID Lock Status US Channel Type Frequency Width Power
1 3 Locked SC-QAM 26800000 Hz 6400000 Hz 31.6 dBmV
2 4 Locked SC-QAM 20400000 Hz 6400000 Hz 30.6 dBmV



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