I'm having a trouble connecting my arduino uno to the ethernet using ethernet shield. The situation is as follows: when i connect my arduino to the ethernet in a certain home network it works fine, when i try it in another home network it fails ! for example i try the built-in example DhcpChatServer and it's always stuck at "Failed to configure Ethernet using DHCP". Basically the laptop,arduino,ethernet shield and all the cables are the same in the two home networks. The only thing that's different is the router itself that i connect my ethernet cable to.
So is there a specific setting in the router that i should check? or is it a compatibility issue (ethernet shields are not compatible with some routers) or maybe the shield is faulty?
what i have already checked : 1) No sd card is in the sd slot 2) DHCP server is enabled in both home network's routers 3) The 3 LEDs of the ethernet on the shield are on correctly 4) when i tried the static ip (Ethernet.begin(mac, ip)) it gives out the correct Ethernet.localIP() but when i enter it in the browser it doesn't work