We have a ZoneDirector 1100 appliance with 8 access points. Our software engineers are accessing the network via DHCP-provisioned IP addresses. Normally, whatever IP they land on is irrelevant to their day to day activities. But we now have a team currently working on a project that requires a reasonably consistent IP. I set the DHCP lease time to 'two weeks', yet we're seeing IP's being renewed more on the scale of hours, if not minutes.
Can anyone make a reasonable guess as to what is causing this?
We are on the latest firmware, and I searched through the support site to no avail.
Best Answer
Although it doesn't answer the specific question of "Why is this happening?", the best answer I could give you is: Don't use the Zone Director for DHCP.
Per Ruckus Wireless themselves in the Zone Director User Guide under the "Enabling the Built-in DHCP Server" section:
So it appears they don't even recommend using it for DHCP; probably because of odd behavior such as you are seeing.
At the very least, it is an extremely limited feature-set. Most work-arounds for your problem would be to configure the trouble clients with statically configured IP addresses/fixed leases in the DHCP server. However there is no capability for that in the Zone Director 1100.
The best way around your problem at this point, would be to configure the Zone Director for DHCP Relay. Once the Zone Director forwards the DHCP requests to an actual DHCP server, you would have much greater control over the DHCP process.