We have two HP Laserjet P1606dn printers on our 192.168.16.0/20 subnet. They have Bonjour enabled. We have users with Ipads/iphones on that same subnet. When we first enable the Bonjour printers, the users can see and print to the printers. But after a while, the printers disappear from the available printers list. The only way to make them come back is to disable/enable the Bonjour service on the printers. Its like a timeout happens and they disappear.
Switches are HP Procurves.
Gateway is a Sonicwall Firewall. Multicast is enabled/allowed on the interface.
Wireless network is Aerohive with Bonjour Gateway enabled (although this doesn't come into play since the printers and users are on the same network).
Anyone have any ideas?