AirPrint wrok correctly on the netwotk wiht bonjour. If you can't see printers on your iPad and iPhone, like message "No Airprint printers found", maybe it's NOT compatible with bonjour on your network. Let's do something to solve it.

Please try to update router's firmware. As our experience, many routers will have bonjour after updating firmware. Usually, you can login managed screen of router to update latest firmware easily. If you don't know how to do it, open router's manual or contact company of your router.

Some routers can be allowed/enabled bonjour service(or called "multicast")by setup settings. Be sure to save settings then back into router to check it.

DLink :
DIR-655
under ADVANCED / FIREWALL SETTINGS / Enable SPI
- make sure SPI is disabled
under ADVANCED / NATENDPOINT FILTERING
- select BOTH "Endpoint Independent"
under ADVANCED / ADVANCED NETWORK / MULTICAST STREAM
- check the box to enable Multicast Stream

Cisco :
Please update latest firmware first and follow setting as below links
Wireless Controller settings
200/300 Series Managed Switches

Actiontec :
Verizon FIOS
Flolow steps to DISABLE IGMP Proxy as below:
- Log in managed page, tap "Advanced" and click yes for "Do you want to processd"


- Select "IGMP Proxy"


- Select "Disable" on the IGMP Proxy

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