Unable to AirPrint more than once with iPadOS 27

If you have a VPN App or profiles installed, or a security/AV/firewall App such as Norton, these may be interfering with your iPad's network stack - sometimes impacting AirPrint/AirDrop and related services - even if the VPN connection is seemingly turned off.

If applicable, the resolution is usually simple; you may need to remove the Security App and/or VPN from the device - and then perform a forced restart. You might also try a reset of your iPad's network settings:

Settings > General > Transfer or Reset iPad > Reset > Reset Network Settings

If this resolves your issue, the VPN and/or security App can be reinstated after the connectivity problem has been resolved. You might also

If some Apps are working as expected, while others are not - or other devices can connect to your WiFi network - you may find that a restart of your WiFi Router, followed by a restart of your iPad and Mac may clear the problem….

To restart your router, disconnect power from the router for at least 30 seconds - then reconnect power to restart. After your router reboots (which may take several minutes), force restart your iPad:

Force restart iPad - Apple Support

As described, your LAN infrastructure may not be passing Apple Bonjour traffic on you local network - or your WiFi Router or Network Switch may be unexpectedly blocking this device discovery protocol.

The Apple Bonjour protocol uses mDNS (Multicast DNS) UDP port 5353.

You may find that restart of your network components will resolve the problem. You’ll need to restart your network devices in the correct order. Assuming that you WiFi Router provides DNS services for your network, restart devices in this order - allowing time for devices to fully boot/restart prior to restarting other devices:

• WiFi Router
• Upstream wired Network Switch(es)
• WiFi Access Points / Network Extenders
• Other fixed infrastructure devices - such as Printers
• Client devices

No VPN, fresh install of iPadOS 27. Will print one document but it won't print another unless I force close the apps. I have even tested this with Safari and a sample PDF. I can print it once, but when I go to print it again and select the Print option, it doesn't do anything. I was however able to print website pages multiple times but no documents. I have test Microsoft Word and PDF files so far.

If it was blocking then it wouldn't allow any traffic. Simply force closing the app and printing again wouldn't trick the router. This is happening at multiple locations with multiple iPads in our business. Like I mentioned....I can print multiple web page jobs just not documents.

Since updating to os27 my epson xp420 is not working correctly.