Ethernet working fine. Also connecting to the bridged router ok. Here is the config:
# aug/07/2021 21:13:46 by RouterOS 6.47.10
# software id = XI4V-7XQN
#
# model = RBD52G-5HacD2HnD
# serial number = A9740AFB6A30
/interface bridge
add admin-mac=74:4D:28:0D:65:0C auto-mac=no comment=defconf name=bridge
/interface wireless
set [ find default-name=wlan1 ] band=2ghz-b/g/n channel-width=20/40mhz-XX \
country=country disabled=no distance=indoors frequency=auto \
installation=indoor mode=ap-bridge ssid=ssid wireless-protocol=\
802.11
set [ find default-name=wlan2 ] band=5ghz-a/n/ac channel-width=\
20/40/80mhz-XXXX country=l=country disabled=no distance=indoors \
frequency=auto installation=indoor mode=ap-bridge ssid=ssid \
wireless-protocol=802.11
/interface list
add comment=defconf name=WAN
add comment=defconf name=LAN
/interface wireless security-profiles
set [ find default=yes ] authentication-types=wpa2-psk group-ciphers=\
tkip,aes-ccm mode=dynamic-keys supplicant-identity=MikroTik \
unicast-ciphers=tkip,aes-ccm wpa-pre-shared-key=password \
wpa2-pre-shared-key=password
/ip hotspot profile
set [ find default=yes ] html-directory=flash/hotspot
/ip pool
add name=dhcp ranges=192.168.1.3-192.168.1.50
/ip dhcp-server
add address-pool=dhcp disabled=no interface=bridge name=defconf
/interface bridge port
add bridge=bridge comment=defconf interface=ether2
add bridge=bridge comment=defconf interface=ether3
add bridge=bridge comment=defconf interface=ether4
add bridge=bridge comment=defconf interface=ether5
add bridge=bridge comment=defconf interface=wlan1
add bridge=bridge comment=defconf interface=wlan2
/ip neighbor discovery-settings
set discover-interface-list=LAN
/interface list member
add comment=defconf interface=bridge list=LAN
add comment=defconf interface=ether1 list=WAN
/ip address
add address=192.168.1.1/24 comment=defconf interface=bridge network=\
192.168.1.0
/ip dhcp-client
add comment=defconf disabled=no interface=ether1
/ip dhcp-server network
add address=192.168.1.0/24 comment=defconf gateway=192.168.1.1 netmask=24
/ip dns
set allow-remote-requests=yes
/ip dns static
add address=192.168.1.1 comment=defconf name=router.lan
/ip firewall filter
add action=accept chain=input comment=\
"defconf: accept established,related,untracked" connection-state=\
established,related,untracked
add action=drop chain=input comment="defconf: drop invalid" connection-state=\
invalid
add action=accept chain=input comment="defconf: accept ICMP" protocol=icmp
add action=accept chain=input comment=\
"defconf: accept to local loopback (for CAPsMAN)" dst-address=127.0.0.1
add action=drop chain=input comment="defconf: drop all not coming from LAN" \
in-interface-list=!LAN
add action=accept chain=forward comment="defconf: accept in ipsec policy" \
ipsec-policy=in,ipsec
add action=accept chain=forward comment="defconf: accept out ipsec policy" \
ipsec-policy=out,ipsec
add action=fasttrack-connection chain=forward comment="defconf: fasttrack" \
connection-state=established,related
add action=accept chain=forward comment=\
"defconf: accept established,related, untracked" connection-state=\
established,related,untracked
add action=drop chain=forward comment="defconf: drop invalid" \
connection-state=invalid
add action=drop chain=forward comment=\
"defconf: drop all from WAN not DSTNATed" connection-nat-state=!dstnat \
connection-state=new in-interface-list=WAN
/ip firewall nat
add action=masquerade chain=srcnat comment="defconf: masquerade" \
ipsec-policy=out,none out-interface-list=WAN
/ip upnp
set enabled=yes
/ip upnp interfaces
add interface=wlan1 type=internal
add interface=ether1 type=external
/system clock
set time-zone-name=Europe
/system package update
set channel=long-term
/tool mac-server
set allowed-interface-list=LAN
/tool mac-server mac-winbox
set allowed-interface-list=LAN