I noticed a beta glitch. A couple of days after the last reboot, the power of the radio signal in both bands dropped sharply. Decreased markedly. I rebooted router. At 2.4, it seems to have returned...

I will say more. New routers with onemash don't even support WDS. I was unable to connect the old TL-WR2543 to the AX73 in WDS mode. Tech support said he was just very old. Then I install DD-WRT...

@maciejp I found a small glitch in the Log of beta firmware. After turning off miniDLNA, the system log shows the following lines: 2021-02-26 16:52:26 Обмен данными по USB УВЕДОМЛЕНИЕ [9607] MiniDLNA...

@maciejp Received a beta version of the firmware. The problem is gone!

@maciejp no, the three-line option can be dropped. I made several reboots - periodically, a double and even triple set of them also appears ...

@maciejp thanks, I will be very grateful!