what prebbe the problem? I am in a city area with many signs,
You have given almost no data to help you. There is no scan of the air from every point.
According to the data you have - set the frequency to 5825 eeeC.
Your signal level is pretty weak, the 80 MHz band needs a signal level of -51 dB, and you have -63 dB. In addition, one point can only work in the 40 MHz band.
The main task is to set the points correctly so that there is as little interference as possible.
You should read up on how wifi radio works, maybe you can improve it. For example, there is a separate Wireless Networking section on this forum