1st router -->2nd router WAN port,then 2nd router all 4 LAN port's is DHCP from 2nd router,so different network,can't share 1st network files
1st router-->2nd router's LAN port,then 2nd router other 3 LAN port is DHCP by 1st router,so same network as 1st router ,sure can share files(remember disable 2nd router's DHCP) |