Many of these issues have been seen because the DHCP server is either configured with to short of a lease, or worse yet it is returning a different IP address to the Unleashed Master. This will cause loss of connectivity until the cluster is re-established with the new IP address. Request that you get at least a 24 hour lease and that the same IP private IP address be handed back out to the same device that initially requested the lease. You can also do a static assignment and ask that that particular IP address or addresses be excluded from the DHCP lease pool.