What you need to do is upgrade the antenna!
*Just being silly not intended for normal use.
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3M double stick tape did the trick for me too
This:
and this:
made a significant difference for me
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I know this is an old one but wanted to add that dtparam=ant1 made no difference for my device with an external antennae however, dtparam=ant0 did… no idea why but it went from 1 bar being available for all of my SSIDs to a solid 4 bars. I couldnt even complete an update before but just did one with zero issues.
Wanted to throw it out there that something is definitely borked and this is what worked for me.
I’d be careful about presenting that as a solution.
The options available for the CM4’s Wi-Fi antenna are ant1 (onboard), ant2 (external), and noant (Wi-Fi hard-blocked). I don’t know what’s the behavior for a non-existent option as ant0. That or the options are outdated.