Hi there, I have a PC that is connected to the router via LAN cable. I have a MacBook Pro, which is connected via WiFi to the router. Both work. Today I bought an iMac to replace my old Windows PC. Because I want the fastest internet speed possible, I prefer to use the LAN cable. Now comes the strange part. My Mac gets a proper IP address assigned (192.168.1.40), but I can't connect to the internet. No website loads, nor can I ping anything. I checked on the router (Zyxel NBG420N), no filters for LAN are set and in the client list of the router, the iMac is listed correctly. The only thing I have set are MAC filters for the WiFI, but that should not affect the LAN. So I turn on the WiFi on the iMac and it works perfect. But as I said I want to use the LAN cable. I now noticed same thing on my MacBook Pro. When I use WiFi, all works. When I plugin the LAN cable, I get an IP address assigned, but no websites load and I can't ping anything, as if there is a problem with the DNS. I also tried setting 220.127.116.11,18.104.22.168 as DNS servers, but didn't help. Even stranger, on my old Windows XP machine, the LAN cable works without a problem. Plug and Play. I also checked the LAN settings on my Windows PC, its all set on DHCP/Automatic, no extra settings. So it seems since the Windows PC works but neither the MacBook Pro (10.6) nor the iMac (10.7) that it's a MacOS X related problem.