Printer works via USB but not over Wi‑Fi — dual‑mode troubleshooting
Joe B.
Reviewed for technical accuracy
Specialities: Windows 11/10, macOS (Sonoma/Ventura/Monterey), Printers, Networking, Mesh Wi‑Fi, Office Equipment
USB works but Wi‑Fi fails — HP, Epson, Canon, Brother on Windows 10/Windows 11 or Mac
Quick answer: the accepted fix
Accepted fix when USB printing works but Wi‑Fi printing does not (Windows 10/Windows 11/Mac/iOS): connect the printer to 2.4 GHz, create a DHCP reservation (static IP), re‑add the printer via TCP/IP with the vendor driver, and ensure mDNS/Bonjour and IPP/RAW are allowed in router/firewall. Avoid Guest/AP isolation.
Printer goes offline after router restart — keep the same IP
If the printer drops off Wi‑Fi or shows offline after reboot, DHCP likely assigns a new address. Make a DHCP reservation for the printer’s MAC in the router so its IP address never changes. Then re‑add the queue using a Standard TCP/IP port on Windows or AirPrint/IP on macOS.
How to verify wireless printing works
Print a status/test page from the printer to confirm the Wi‑Fi IP. From a PC, open a browser to that IP — the web admin should load. If it doesn’t, check AP isolation, guest SSID, and firewall. From iPhone/iPad, try AirPrint again; if missing, verify Bonjour/mDNS is not blocked.
Wireless printing — troubleshooting tips
Most Wi‑Fi issues come from band/SSID mismatch, changing IPs, or blocked discovery.
Quick path: join 2.4 GHz SSID → set DHCP reservation/static IP → re‑add queue via TCP/IP → enable Bonjour/mDNS → disable AP/Client isolation and avoid Guest networks → allow IPP/RAW through firewall/VPN. For HP/Epson/Canon/Brother, vendor setup tools simplify Wi‑Fi reconnect.
Disclaimer: This information is AI-generated and intended for general guidance only. For advice specific to your environment, please consult a verified expert on Whizz-Tech before making decisions.
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FAQ
Why does my printer work via USB but not over Wi‑Fi?
Usually band/SSID mismatch (printer on 2.4 GHz, phone on 5 GHz), changing IPs without a reservation, or blocked discovery (mDNS/Bonjour). Join the same 2.4 GHz SSID, set a DHCP reservation/static IP, re‑add the queue via TCP/IP, and allow IPP/RAW through firewall.
How do I stop the printer from going offline after a router restart?
Create a DHCP reservation so the printer keeps the same IP. Then add it on Windows using a Standard TCP/IP port or on macOS as AirPrint/IP. This prevents “offline” caused by IP changes.
AirPrint can’t find my printer — what now?
Ensure iPhone/iPad and printer are on the same SSID; disable Guest or AP isolation; allow mDNS/5353 in router/security apps; enable Bonjour/AirPrint on the printer.
Will Wi‑Fi Direct fix this?
Wi‑Fi Direct is temporary and device‑to‑device. For whole‑home printing, join the printer to your main 2.4 GHz SSID with a DHCP reservation.
Brand tips for HP / Epson / Canon / Brother?
Use each vendor’s setup tool to re‑join Wi‑Fi, then lock a DHCP reservation. Add the printer via TCP/IP (Windows) or AirPrint/IP (Mac). Ensure drivers are the full vendor versions, not a class/IPP placeholder.
| Symptom | Likely cause | Quick fix |
|---|---|---|
| USB works, Wi‑Fi “Offline” | New DHCP IP; cached port | DHCP reservation; re‑add as TCP/IP port |
| Phone can’t find printer | 5 GHz vs 2.4 GHz; mDNS blocked | Use 2.4 GHz SSID; enable Bonjour; allow UDP 5353 |
| Works on PC, not on Mac/iOS | AirPrint disabled or filtered | Enable AirPrint; disable AP/Client isolation; same subnet |
| Fails on Guest or VPN | LAN access blocked | Use main SSID; allow local network in VPN; firewall rules for IPP/RAW |
Step‑by‑step (Windows 10/11)
- Connect printer to 2.4 GHz SSID; create a DHCP reservation in the router.
- Remove old queues; Add printer → Add manually → TCP/IP; install the vendor driver.
- Open Printer properties → Ports and confirm the Standard TCP/IP port points to the reserved IP.
- Set network to Private; allow File and Printer Sharing and mDNS/IPP/RAW through firewall.
Step‑by‑step (macOS)
- Join the printer to the same 2.4 GHz SSID; reserve its IP in the router.
- In System Settings → Printers & Scanners, add the printer with AirPrint or via IP (IPP/HP Jetdirect).
- Ensure Bonjour is enabled; avoid Guest SSID and AP isolation.
Sources
- Microsoft — Troubleshoot printer problems (Windows 10/11)
- Apple — About AirPrint & Bonjour
- HP — Wireless printing setup
- Epson — Wi‑Fi setup & utilities
- Canon — Wireless LAN setup
- Brother — Wireless network user’s guide
Filed under: Printer won’t print
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