Some problems that I encountered when establishing connection through LAN when playing multiplayer games.
Make sure your firewall is off
Turn off your firewall temporarily (in Windows Defender / Anti Virus settings).
Make sure the Internet is set to private
Trusting the connection can make others see you on LAN.
Make sure all virtual adapters are disabled
With virtual adapters enabled, the game cannot get the LAN we want it to get.
ipconfig /all ping 192.168.X.X netstat -a