I don’t understand.
The mAP lite has only one ethernet port, ether1.
You want to connect your radio (wlan1) to an existing wi-fi network?
Then the device is a “client” or “station” (and not an AP).
And - it depends on choices - it can be configured both as “router” (with wlan1 as WAN and ether1 as LAN) or as a “switch” (with both wlan1 and ether1 in a bridge).
If it is a router and the Wi-FI is “unknown” it is not a very good idea to connect without a firewall, on the other hand if it a “trusted Wi-FI” a bridge configuration would be simpler and avoid double NAT, (but of course you can have the router configuration without a firewall), but I see a few perplexing settings in your configuration:
there is seemingly no “mode” in /interface wireless
/interface wireless
set [ find default-name=wlan1 ] band=2ghz-b/g/n country=italy disabled=no \
installation=indoor security-profile=Pixel6a ssid=Pixel
which should be either station bridge (if the wi-fi network AP is also Mikrotik) or station pseudobridge (if the wi-fi network AP is not Mikrotik), like:
/interface wireless
set [ find default-name=wlan1 ] band=2ghz-b/g/n country=italy disabled=no
installation=indoor > mode=station-pseudobridge > security-profile=Pixel6a ssid=Pixel
There is a LTE interface:
/interface lte apn
set [ find default=yes ] ip-type=ipv4 use-network-apn=no
which cannot exist on a mAP lite.
And ovpn/hotspot/ipsec/bfd settings that seem to have no reason to exist.
The rest seems just fine.
So please check the setting in /interface wireless, then post your configuration again.
Post also the output of:
/ip address print
and of:
/ip route print
so that we can check that dynamic addresses are assigned and dynamic routes are created.