Mar 18, '10 07:30:00AM • Contributed by: madh
While playing with Snow Leopard Server's various services, I noticed DHCP wasn't working. Actually, it worked at first for my laptop, then it stopped. Then I noticed the iPhones were not able to receive IPs either. I thought it was something with my server, so I drew a network diagram, and it gave me an idea.
I have an Internet modem connected to a Netgear router, to which the AirPort Extreme (Dual Band) is connected. My Snow Leopard Server machine is connected via the AirPort, as are all other clients. My drawing showed that when my Server was connected on the 5Ghz side, and the DHCP clients were connected on the 2.4Ghz side, DHCP would not work.
I confirmed this by splitting the dual band and connecting server and all clients on the 2.4GHz channel only. Set up this way, DHCP worked great; problem solved! I'm not sure if that makes perfect sense to the IP specialists, but I almost think this is a bug with the Dual Band implementation.
[robg adds: I can't confirm this one, but I'd be interested in comments from others using Server and Dual Band AirPort to see if this is a general issue or not.]
