----------Part 1
сбрасываем настройки маршрутизатора без создания дефолтной конфигурации

/system reset-configuration no-defaults=yes skip-backup=yes
#########################################################################################
/use add name=exch_adm password=PASSWORD!!! group=full
/user disable admin
/ip service disable api,api-ssl,ftp,telnet,www-ssl
/system identity set name=Sli_test_mikrotik

/interface bridge { 
add name=bridge_lan 
set bridge_lan auto-mac=no admin-mac=[get bridge_lan mac-address] 
}
/interface bridge port add bridge=bridge_lan interface=all

/ip dhcp-client add  dhcp-options=hostname,clientid disabled=no interface=bridge_lan use-peer-ntp=no

/system clock set time-zone-name=Europe/Kiev
/system ntp client set enabled=yes primary-ntp=62.149.0.30 secondary-ntp=31.28.161.71
/system scheduler add interval=1w name=Reboot on-event="/system reboot" policy=ftp,reboot,read,write,policy,test,password,sniff,sensitive,romon start-date=apr/26/2023 \
    start-time=03:00:00

Можно обновить прошивку

#########################################################################################
/interface wireless security-profiles

###	set [ find default=yes ] supplicant-identity=Esplanadnaya_1

add authentication-types=wpa2-psk comment=walker11 eap-methods="" group-key-update=55m management-protection=allowed mode=dynamic-keys name=\
    Upfk_wifi_profile supplicant-identity="" wpa2-pre-shared-key=walker11

/interface wireless
set [ find default-name=wlan1 ] band=2ghz-onlyn country=ukraine disabled=no distance=indoors frequency=auto installation=indoor mode=ap-bridge \
    security-profile=Upfk_wifi_profile  wireless-protocol=802.11 ssid=Esplanadnaya#4

set [ find default-name=wlan2 ] band=5ghz-n/ac country=ukraine disabled=no distance=indoors frequency=auto installation=indoor mode=ap-bridge \
    security-profile=Upfk_wifi_profile  wireless-protocol=802.11 ssid=Esplanadnaya#4_5Ghz