Internet connectivity issue at the pc connected to my LAN interface despite policy rules configured

[BKR]

I can't access internet from my pc that is in the same subnet as the LAN port, 

Firewall policies are created (LAN-WAN) dst lan port address / src all, and (WAN-LAN). 

[AEK]

Hello BKR

You can start by enabling all traffic logging on the related policy, then check in traffic log if your traffic is being allowed or blocked.