For the office we recently bought a WNDR3700 (v1) to accomodate our growing (from one wired and about four wireless to four wired and about eight wireless clients, so not really large) network. We have a Mac Mini server set up as DHCP and DNS server (it has a static IP), so it serves IPs and sets itself as the DNS. I have disabled the DHCP server on the WNDR3700.
What happens is that sometimes the DNS server is not reachable by most (but not all) clients.
I have verified that all clients can ping all other clients, the gateway and hosts on the internet, except that some clients cannot ping to the DNS/DHCP server. Those clients also cannot use nslookup (or dig).
I do not know about any restrictions on the DNS/DHCP server. It's logs don't state anything out of the ordinary and there are no (obvious?) errors.
So the connection was lost again so I tried pinging the DNS server from a PC.
gave replies from
192.168.1.2 (the DNS server), but no other machine.
gives only timeouts.
192.168.1.255 from a working machine gives replies from all other working machines on the network.