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Faraday cages cannot block stable or slowly varying magnetic fields, such as the Earth’s magnetic field (a compass will still work inside one). To a large degree, however, they shield the interior from external electromagnetic radiation if the conductor is thick enough and any holes are significantly smaller than the wavelength of the radiation

I’m certainly no expert, but something tells me the cage in OP’s pic doesn’t fit the criteria to act as a faraday cage.

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deegeese@sopuli.xyz ⁨1⁩ ⁨day⁩ ago
The mesh is not dense enough to be a true Faraday cage for 2.4GHz, but is dense enough to hurt signal strength.

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- socsa@piefed.social ⁨1⁩ ⁨day⁩ ago
  Probably not for a MIMO AP. The whole idea is that you since the equations to optimize in the presence of multipath. It's legit wizard shit but it's the reason why your cell phone works in a parking garage, because the optimal channel is bouncing off the ventilation shaft. For any reasonably modern AP, it should work the same way. This might hurt a bit but not that much.
  
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  - deegeese@sopuli.xyz ⁨1⁩ ⁨day⁩ ago
    MIMO will solve lensing issues but not internal reflection or absorbance.
    
    So like OP says, it’s a signal strength issue.
    
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SnotFlickerman@lemmy.blahaj.zone ⁨1⁩ ⁨day⁩ ago
It says WiFi is “slow” not “off.”

I have definitely personally experienced WiFi instability with metals in between the WiFi and a PC.

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