There was a problem of ping subsidence, I had to act by the exception method, as a result of which the cause of the usb adapter was identified. Established Cisco everything is OK. Of course, it is not for two bands and the bandwidth is only 300, but it will do as a temporary solution. I will hand over this device to the manufacturer's service center, see what they say. If they repair or replace it, we will continue to use it, since it worked more or less stably for a year and a half. I confirmed the problem with subsidence by installing it in another wi-fi network.
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