I have both wifi and LAN. UDP packets from the wifi do not arrive, neither in the wifi itself nor the LAN or the internet (WAN).
then you've probably been playing with the firewall rules, this is not standard openwrt behavior.
Please run the following commands (copy-paste the whole block) and paste the output here, using the "Preformatted text
</> " button:
Remember to redact passwords, MAC addresses and any public IP addresses you may have
ubus call system board; \ uci export network; uci export wireless; \ uci export firewall; \ ip -4 addr ; ip -4 ro li tab all ; ip -4 ru