I just installed a small new Instant network and now we're seeing computer name change notifications popping up on Mac laptops. "The name of your computer [NAME) is already in use on this network. The name has been changed to [NAME] (1)". The number keeps incrementing everytime there is a network disruption, like after sleep or connecting a network cable.
I have broadcast filtering set to ARP.
In AirGroup I have enabled: Enable Bonjour, airplay, airprint, itunes, remotemgmt, sharing
Does broadcast filtering or AirGroup cause this or is it a combination of both? I haven't seen this on earlier installations, but often the Mac laptops use Wi-Fi only. I'm running 6.4.2.6_4.1.3.1 (IAP-205) firmware.