re: What could be killing my wifi signal strength?

quote:

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might be a silly question but why would heat or the channel/5ghz thing matter?

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Electronics have certain heat tolerances, and if the router's internals are getting too hot, you'll see a significant decline in performance. The heat issue is just a theory. It may be just fine in the cabinet temperature-wise, but from what you listed that's in that cabinet, I can't imagine it being the ideal environment without any ventilation.

The 5GHz suggestion was to get you off of the 2.4GHz band, which is rife with interference your (neighbors' wifi, microwaves, cordless phones, some baby monitors, etc). That may not be the solution either, but we're just eliminating variables.