mDNS / Airprint not working on 3504 WLC - Page 2

Paul.Ostaszewski · ‎12-31-2024

I was previously running a Cisco 5508 WLC running 8.5.182.0 and had mDNS working with no issues. I recently removed the 5508 from my network and installed a HA pair of 3504's running 8.10.196.0 in its place. I have one SSID that all my wireless devices connects to. These devices include 1 HP M452DW color laserjet printer, two iPhone 16 pro's running iOS 18.1.1, 1 iPhone 6s running iOS 15.8.3, 1 iPad 6th gen running iOS 17.7.2, 1 iPad 10th gen running iOS 18.2 and a couple of windows 10 pc's.

Having the 5508 side by side with my 3504, I went page by page in the GUI and configured everything from the interfaces, WLAN's, including the mDNS settings.

I cannot for the life of me get Airprint to work from my apple devices to the HP M452DW printer using the 3504 WLC's. All apple devices and the printer, are on the same SSID/network.

Can someone please walk me through what to check in order to get this working again? My 6 year old can't print from her iPad anymore and its really bumming her out.

Thanks in advance!

-Paul

Paul.Ostaszewski · ‎01-05-2025

When I look at wlan>PMO>advanced P2P Blocking is set to disabled. As for if I'm using flex connect, I don't believe I am. When I check wlans>PMO>advanced Flexconnect has no checkbox next to enabled.

Paul.Ostaszewski · ‎01-05-2025

So I took the time to hook up my 5508 again and went setting by setting against the 3504 controller.

On the 3504 controller - As soon as I turned on "Enable IGMP Snooping" and "Enable MLD Snooping" with the default values - under Controller>Multicast - my AirPrint printer showed up. So on Controller>Multicast I have "Enable Global Multicast Mode", "Enable IGMP Snooping" and "Enable MLD Snooping" all enabled.

On Controller>mDNS>General I have "mDNS Global Snooping" disabled and "mDNS Policy" enabled.

On WLANs>WLANs>Advanced I have "mDNS Snooping" enabled and pointed to the default-mdns-profile.

On Controller>General AP Multicast Mode Unicast

I appreciate everyone's help here... I guess I should have paid closer attention to the settings on my 5508 controller and I probably would have not have had to end up posting here. Hopefully this thread helps someone else out down the road though.