Xfinity claims that Upstream Power Levels should be +35 to +50 dBmV. The S33 wants Upstream Power Levels to be +45 to +51 dBmV.
A lot of Xfinity customers have +35 to +44.9dBmV Upstream Power Levels and they aren’t getting Gigabit performance.
How do we fix this?
Best answer by zediiiii
Go read this excellent post
https://www.reddit.com/r/HomeNetworking/comments/132yhxd/tutorial_how_to_fix_downstream_and_upstream_power/
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