Победил, перебором подобрал пароль! скинул настройки через SSH
login as: root
root@192.168.1.5's password:
BusyBox v1.25.1 () built-in shell (ash)
_ _ .__.__
| | |__ |\_ __/|
| | / \| || __) | | (c) 2010-2021
| | | | \ || \ | | Ubiquiti Networks, Inc.
|__|_| /||/ ||
|_/ https://www.ui.com/
Welcome to UniFi USW-Flex!
USW-Flex-US.5.64.8# set-default
Clearing CFG ... [%100] done!
FACTORY (RESET) event detected!
Cannot parse config file: No such file or directory
а дальше по инструкции https://help.ui.com/hc/en-us/articles/205143490-UniFi-How-to-Reset-Devices-to-Factory-Defaults
login as: root
root@192.168.1.5's password:
BusyBox v1.25.1 () built-in shell (ash)
_ _ .__.__
| | |__ |\_ __/|
| | / \| || __) | | (c) 2010-2021
| | | | \ || \ | | Ubiquiti Networks, Inc.
|__|_| /||/ ||
|_/ https://www.ui.com/
Welcome to UniFi USW-Flex!
USW-Flex-US.5.64.8# set-default
Clearing CFG ... [%100] done!
FACTORY (RESET) event detected!
Cannot parse config file: No such file or directory
а дальше по инструкции https://help.ui.com/hc/en-us/articles/205143490-UniFi-How-to-Reset-Devices-to-Factory-Defaults