What the Canon printer not found on network error means
The message usually means your computer, phone, or print server cannot discover the Canon printer on the local network.
It often points to Wi-Fi instability, an IP address change, a driver mismatch, or a router setting that blocks discovery.
This problem can appear on Canon PIXMA, imageCLASS, MAXIFY, and other models across Windows, macOS, iPhone, Android, and Chromebook setups.
The good news is that most cases are caused by configuration issues rather than hardware failure.
Why a Canon printer disappears from the network
Network printers depend on consistent communication between the printer, router, and device.
If any part changes, the printer may no longer show up during setup or printing.
- Wi-Fi disconnects: The printer moved off the network or lost signal.
- Router changes: New SSID, password, band steering, or DHCP settings can break discovery.
- IP address changes: The printer gets a different address after rebooting or renewing its lease.
- Driver or app issues: Outdated Canon drivers, UFR II components, or mobile apps may fail to locate the printer.
- Firewall or security rules: Windows Defender Firewall, third-party security suites, or router isolation can block discovery traffic.
- Different network bands: A printer on 2.4 GHz may not appear to a device connected to 5 GHz on certain routers.
Start with the fastest checks
Before changing advanced settings, confirm the basics.
These quick checks solve many Canon network discovery problems.
Is the printer actually connected to Wi-Fi?
Check the printer’s control panel for a wireless indicator, network icon, or connection status.
On many Canon models, you can print a network configuration page or wireless LAN report to confirm the SSID and signal strength.
Is your device on the same network?
Make sure your computer or phone is connected to the same router and SSID as the printer.
Guest networks, office VLANs, and mesh network guest modes commonly prevent printer discovery.
Has the router or printer recently restarted?
After a reboot, printers may need a minute or two to reconnect and obtain a fresh DHCP lease.
Wait briefly, then refresh the printer list in your device settings or Canon software.
How to fix Canon printer not found on network on Windows
Windows often relies on both driver installation and network discovery.
If either is broken, the printer may not appear or may install as an offline device.
- Check the printer status: Open Settings or Control Panel, go to Printers & scanners, and confirm the Canon device is listed.
- Remove and re-add the printer: Delete the existing printer entry, then add it again using Windows discovery or by IP address.
- Install the latest Canon driver: Download the correct model-specific driver from Canon’s support site.
Many printers require the full driver package, not only the generic Windows driver.
- Turn on network discovery: In Advanced sharing settings, enable network discovery and file and printer sharing for private networks.
- Check firewall permissions: Allow Canon utilities and printing services through Windows Defender Firewall.
Third-party security software may also need a rule.
- Add by IP address: If discovery fails, use the printer’s current IP address to create a TCP/IP printer port.
This is often the most reliable fix.
If the printer works by IP address but not by name, the issue is usually discovery-related rather than a deeper connectivity failure.
How to fix Canon printer not found on network on Mac
On macOS, printer detection can fail when Bonjour discovery, cached printer entries, or older Canon software conflicts with current network settings.
- Open Printers & Scanners: Remove the Canon printer, then add it again from the plus menu.
- Choose the correct driver: If macOS offers AirPrint and a Canon-specific option, test both.
AirPrint may work when the vendor driver does not.
- Reset the printing system: In some cases, resetting the printing system clears corrupted printer records and lets macOS rediscover the device.
- Confirm Bonjour support: Bonjour is used for local discovery.
If router isolation or firewall rules block multicast traffic, the printer may not appear.
- Update Canon utilities: Older scan and printer utilities may not support newer macOS versions or network protocols.
How to fix Canon printer not found on network on mobile devices
Phones and tablets usually connect through the Canon PRINT app, AirPrint, Mopria, or manufacturer-specific discovery.
Mobile issues are often tied to app permissions or network differences.
On iPhone and iPad
- Join the same Wi-Fi network as the printer.
- Disable VPN temporarily, since some VPN profiles interfere with local discovery.
- Allow local network access for the Canon app in iOS privacy settings.
- Try AirPrint if the Canon app cannot find the device.
On Android
- Use the latest Canon PRINT app or Mopria Print Service if supported.
- Confirm location and nearby device permissions if the app requests them.
- Switch off mobile data briefly if the app keeps trying to route traffic outside the LAN.
- Reconnect to Wi-Fi after forgetting and rejoining the network.
Check the printer’s IP address and assign a stable one
An IP address change is one of the most common reasons a Canon printer not found on network error returns after working previously.
When the router gives the printer a new address, older shortcuts and saved printer entries may stop working.
To reduce repeat problems, assign a reserved IP address in the router or configure a manual static address on the printer if Canon supports it.
A DHCP reservation is often easier because the router controls the address while keeping it stable.
- Find the current IP on the printer’s network status page.
- Log in to the router and reserve that IP for the printer’s MAC address.
- Re-add the printer on your computer using the reserved address if needed.
Router settings that can block Canon printer discovery
Some routers prioritize security or network efficiency in ways that interfere with local printing.
These settings are especially important in mesh systems, office networks, and newer dual-band routers.
- AP isolation or client isolation: Prevents devices on Wi-Fi from seeing each other.
- Guest network mode: Often blocks printer traffic by design.
- Band steering: Can move devices between 2.4 GHz and 5 GHz in ways that break discovery on older printers.
- Multicast filtering: May interrupt Bonjour, mDNS, or other discovery protocols.
- Firewall rules: Can block UDP traffic used for local device detection.
For best results, place the printer and your computer on the main home or office network, not a guest SSID.
If your router has both 2.4 GHz and 5 GHz, many Canon printers connect more reliably to 2.4 GHz.
When to reinstall Canon software
Reinstall Canon software if the printer was previously working and now disappears after an OS update, driver update, or router change.
Corrupted printer packages, old scan utilities, and partial uninstallations can leave behind broken network references.
Remove the printer from your system, uninstall outdated Canon utilities if necessary, restart the device, and then install the latest model-specific software from Canon’s support page.
This is especially helpful for imageCLASS office printers, multifunction devices, and older PIXMA models that rely on full-feature software packages.
What to do if the printer still is not found
If the Canon printer still is not found on network after the usual fixes, test the hardware and network path more carefully.
- Print a network configuration report from the printer.
- Ping the printer’s IP address from a computer on the same network.
- Try a different device to determine whether the issue is system-specific.
- Connect the printer temporarily with USB, then use Canon’s wireless setup tools to rejoin Wi-Fi.
- Restart the router, printer, and computer in that order.
If the printer cannot obtain an IP address, fails to join Wi-Fi repeatedly, or shows a weak signal, the issue may be related to router compatibility, wireless credentials, or printer hardware.
In that case, verifying the model on Canon’s support site and checking the exact wireless setup steps for your series will save time.
