Quote Originally Posted by MrDuck
.... local IP 192.168.1.40, mask 255.255.240.0, gateway IP is 192.168.1.1, and nameservers I've tried both 192.168.1.1 (default) and 208.67.222.222 208.67.220.220 (OpenDNS dns servers), no difference.
Yup, some sort of DNS issue.

I don't know that router, but I have seen an old Belkin router that would DHCP fine with Windows but not with Linux. It was a router issue, not a Linux issue. I have also seen reports here of problems with DNS servers and ipv6 vs. ipv4, but since you have tried using both the gateway as a DNS server and some open DNS servers I doubt that is your issue.

I quoted the above because it doesn't look right. I don't know that router, but does it really support 4094 devices (4096 addresses based on the mask)? Most home devices support far fewer, 256 addresses or less. If it's correct then great, but if it's wrong it would throw off ARP pretty bad.

By the way, you should be able to get to this site by putting the above ip address in a browser. More interesting than just pinging it. But you'll still want DNS services working.

Good Luck.