Hi all, I got one X460 (slot-1) and one X440 (slot-2) in a stack, connected using standard SummitStack cables in a ring topology. Prior to slot-1 unexpected reboot, I had couple of the following entries in a log: Slot-1: IPv4 multicast entry not added. Hardware Group Table full. Could this slot-1 reset be due to some wrong (default) multicast configuration ? Both switches have the same 16.1.1.4 EXOS image. Regards Robert