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Moveable wifi antenna [solved] (sh.itjust.works)

submitted 1 month ago* (last edited 1 month ago) by [email protected] to c/buildapc

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I got a new monitor somewhat recently, and I have noticed it causing interference with my wifi card (Ax210, not sure what brand). The wifi gets really slow (like 1/10 speed, sometimes dropping connections) when the monitor is plugged in and goes back to normal when unplugged. I've tried multiple hdmi cables but it still does it. I know you can buy antennas that can be moved, but I'm not sure where to start looking for them. Does anyone have any recommendations or info?

Edit: solution was putting aluminum foil around GPU Iowa and cable

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[–] [email protected] 2 points 1 month ago (1 children)

What monitor? Sounds like it's leaking EM radiation. You could probably just shield it with some aluminum foil.

I'd also check the power cable, since power circuits are usually where EM leaks originate (usually being higher wattage and much dirtier). I'd be suspicious of the transformer on the cable, if there is one.

[–] [email protected] 2 points 1 month ago* (last edited 1 month ago)

The monitor's on the other side of the desk. It could be the issue but it doesn't affect my phone or laptop which are closer to the monitor. I will mess around with aluminum foil because that sounds wonderfully janky.

Edit: foil around cable and GPU io fixed it. It is up to about 3/4 of speed with monitor unplugged, which is a massive improvement and perfectly usable. Thanks so much for the suggestion.