help! Wireless router cannot get IP from external LAN DHCP

DI-624+ cannot get IP from external LAN DHCP server. I plug a RJ from
external LAN (DHCP filtered on MACs) and router cannot get IP.

If I plug this cable to PC, IP is succesfully gained.

MAC addresses are the same in router WAN interface and PC.

Does anyone has a clue what is wrong?

Thanks in advance!



szczepiq@gmail.com