WiFi drops at the exact same moment every evening

VossTransmission
OP4 days ago
Every evening at 9:47 PM my home WiFi drops for exactly 22 seconds. Starting March 18. I logged it for 27 consecutive nights. 27 out of 27. Same second. Same duration. My ISP says they see nothing. My router is new. My modem is new. Two different ISPs over the past year, same behavior. It's not the hardware. It's the ENVIRONMENT.
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27/27 at identical timestamp rules out random interference. That's a scheduled event, external to your home. Question is whether it's the 2.4 GHz band, the 5 GHz band, or both going down.
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VossTransmission
3 days ago
@FinchFrequency BOTH. simultaneously. which my router documentation says should be essentially impossible for a local interference source.
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a simultaneous both-band drop at a scheduled time = a broad-spectrum sweep. somebody is running a 22-second scan at 9:47 PM in your neighborhood every night. for what purpose, that's the question.
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TanakaTransmits
3 days ago
ask your neighbors. if their wifi also drops at 9:47, it's regional. if not, it's targeted at your address.

VossTransmission
2 days ago
3 of 4 neighbors I asked confirmed 9:47 drops. the fourth neighbor — the one whose house faces the cell tower — says her wifi doesn't drop. hmm.
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the one house that doesn't drop is the one in the tower's line of sight. that's the transmitter, and the sweep is originating from there. you have your answer. now what do you do with it.
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