Interference in my room from neighbors my router is turned off
Frequency time graph of interference
The device receives signals from a regular antenna from a router in a regular room. Horrible... The signal levels are very high... How will your Wi-Fi work far with such a level of interference?
A meter from my router)))
My router channel 13, 20 MHz...
I'll go into the next room and my signal will be equal to the interference level.
You can't really count on Wi-Fi...There will be no communication range...
Wi-fi is good within one room
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There are some apps for android like wifiman, or wifi analyzer.
There you can find the least congested channels.
Then there are also different sources of interference:
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alot of routers are highly vulnerable to attached usb, try to not use the usb port on the router especially the 2.4ghz reduces greatly in range.
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new houses / isolation, some new houses are such good isolated that even after a room the signal degrades, this is unfortunately but then you have to look into a roaming or mesh solution with multiple AP.
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maybe 2.4ghz is just noisy, nothing you can really do then, you can only prefer 5ghz.
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some machines or outside work machines, or even kitchen furnaces and microwaves could impact the quality of wifi, best is to change channel.
It is important the country has been set inside the advanced settings in luci, under the network->wireless->edit wifi, otherwise bands are much more prone to disconnect due to radar detection, when in reality it could have been a bluetooth signal, or microwave in where the router reads it wrongly to a radar detection.