How do they jam the Wi-FI signal with another network?

Question

WiFi

At one time at work, wi-fi disappeared from the entire office (the office was the last one and closest to the house next to it), it simply did not connect to the router, giving an error, . At this time, a network called "xyu Bam a He wifi" appeared.
How is this done?

Answer 1

And try to hide the BSSID (if you have access to setting up the point and its clients). There is a small chance that it will help :)

Answer 2

I work in a store that sells radio components. Once or twice a year, students come and buy high-frequency transistors and other elements for building jammers. To the question why - for the laboratory. But even it seems to me not always. :-) Without additional tricks, you can name the point in the same way as the target. I had a case where I didn't rename my DIR-615. After a neighbor bought the same router. For some reason, my phone tried to connect to someone else's rotary with its own password.