Mopria Print Service on Android not discovering printers — fast fix

Joe B.

Reviewed for technical accuracy

Specialities: Android 14/13, Mopria Print Service, HP/Canon/Brother/Epson plugins, Wi‑Fi/Bonjour (mDNS), IPP, Network Printing

Mopria not finding printers on Android — “No printers found”, enable discovery, IPP/Bonjour, Wi‑Fi Direct

Technician

Hey! Let’s fix Mopria Print Service not discovering printers. Tell me your phone model and Android version, the printer brand (HP, Canon, Brother, Epson), and whether you’re on the same Wi‑Fi SSID as the printer. Also, do you use a company Wi‑Fi with VLANs/client isolation or a home router?

Customer

Samsung on Android 14. Mopria shows No printers found. The HP printer is on Wi‑Fi and prints from PCs. I’m on the same network, I think.

Technician

Got it. Android discovers printers via Bonjour/mDNS and IPP broadcasts. Typical reasons for Android print service no printers found:
• Phone and printer aren’t on the same subnet/SSID (2.4 GHz vs 5 GHz “guest” net).
• Router has AP/client isolation or multicast/mDNS blocking.
• Private DNS/VPN/Firewall on the phone blocks discovery.
• Location permission is off (Android uses it for Wi‑Fi scanning).
• Mopria cache is stuck or an OEM print plugin is disabled.
Plan: verify network, enable discovery, then refresh Mopria and (if needed) add via Wi‑Fi Direct or manual IPP path.

Customer

Where do I check these on Android?

Technician

Enable printer discovery on Android 14/13:
1) Settings → Connections → Wi‑Fi — make sure you’re on the same SSID as the printer (not Guest/IoT). Toggle Wi‑Fi off/on.
2) Settings → Privacy → Permission manager → Location — allow Location for Mopria Print Service. Also turn on device Location temporarily.
3) Settings → Connections → More connection settings → Private DNS — set to Off/Automatic for the test. Disable VPN/Firewall apps while testing.
4) Settings → Apps — open Mopria Print Service → Storage → Clear cache (and data), then Force stop and re‑enable. Ensure OEM plugins (HP/Canon/Brother/Epson) are enabled if you use them.
5) Settings → Printing — turn on Mopria Print Service and tap Search.

Customer

Still nothing. Router is an ISP combo box. PCs see the printer by name. Could it be the router?

Technician

Likely. Many routers block multicast or enable client/AP isolation on Guest/IoT SSIDs. Fixes:
• In the router, enable mDNS/Bonjour (or “Multicast enhancement”). Disable Client isolation for your main SSID.
• Keep printer and phone on the same band/subnet (avoid separate IoT VLAN).
• If you can’t change router settings, connect via Wi‑Fi Direct from the printer panel or use a manual IPP add in Mopria (if supported by your brand app).

Customer

Can I use the HP plugin instead of Mopria?

Technician

Yes. For some models the OEM print service plugin (e.g., HP Print Service Plugin, Canon Print Service, Brother Print Service, Epson iPrint) discovers more reliably. Install or enable it, then in Settings → Printing turn on the OEM plugin alongside Mopria. Try printing again.

Customer

What about adding the printer by IP? I know its address.

Technician

Good idea. In the OEM app (HP Smart/Epson iPrint/etc.) choose Add printer by IP address and enter the IPP path if prompted (often http://PRINTER-IP/ipp/print or ipp://PRINTER-IP/ipp/print). Reserve a static IP in the router so discovery stays consistent.

Customer

My office blocks guests from seeing devices. Any enterprise tips?

Technician

For managed networks, ensure mDNS reflector (Bonjour gateway) across VLANs, allow UDP 5353 multicast and IPP 631. If discovery is restricted, publish printers through the vendor app or a Mobility Print service that bridges Android. Avoid VPN that tunnels all traffic during discovery tests.

Customer

Now the printer shows up but jobs get stuck.

Technician

Clear the Android print spooler: Settings → Apps → See all → three dots → Show system → Print Spooler → Force stop and Clear cache. Reboot the phone and power‑cycle the printer. If you use battery/data savers, exclude Mopria/OEM plugin from Battery optimization so discovery runs in the background.

Customer

Any quick checklist I can follow next time?

Technician

Fast checklist — Mopria not discovering printers: Same SSID/subnet → enable Location → disable Private DNS/VPN → clear Mopria cache → enable OEM print service plugin → allow mDNS/Bonjour on router → try Wi‑Fi Direct or manual IPP → reboot devices. This resolves most No printers found cases.

Customer

Done — the HP shows up and prints. Thanks!

Technician

Summary: When Mopria Print Service can’t find printers, fix network discovery (same SSID, no client isolation, allow mDNS/Bonjour), enable Location, refresh Mopria/OEM print plugins, and add by IPP or Wi‑Fi Direct if needed. Need hands‑on help? Open the chat and an expert will walk you through it.

Quick answer: the accepted fix

Accepted fix for Mopria not discovering printers on Android: connect the phone and printer to the same Wi‑Fi SSID, allow mDNS/Bonjour on the router, enable Location permission, disable Private DNS/VPN temporarily, clear Mopria cache, and use the OEM print service plugin or add the printer via IPP/Wi‑Fi Direct.

FAQ

Step‑by‑step (Android)

1. Connect phone and printer to the same Wi‑Fi SSID (avoid Guest/IoT).
2. Enable Location and grant permission to Mopria Print Service.
3. Temporarily disable Private DNS, VPN, and firewall apps.
4. Clear cache/data for Mopria Print Service and the Android Print Spooler; reboot.
5. If still failing, enable the OEM print service plugin or add the printer by IPP / connect via Wi‑Fi Direct.

Step‑by‑step (Router)

1. Ensure mDNS/Bonjour is allowed; disable AP/client isolation on the main SSID.
2. Keep printer and phone on the same subnet/band; reserve a static IP for the printer.
3. Open required ports: UDP 5353 (mDNS) and TCP 631 (IPP).

Sources

• Mopria Print Service — Official
• Android — Print from your device
• HP — Print Service Plugin
• Brother — Mobile printing
• Epson — iPrint for Android
• Canon — Print Service

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