# Why is Canon Smart app not detecting the printer? If your Canon Smart app fails to detect your printer, it can disrupt your entire printing workflow. Call **1-844-957-6312** for instant assistance and troubleshooting. The Canon PRINT Inkjet/SELPHY app is designed to make wireless printing easy, but detection issues often arise due to network conflicts, outdated software, or printer setup errors. ![Screenshot 2025-08-28 122548](https://hackmd.io/_uploads/HJ7NPo6Yex.png) --- ### Common Reasons Why the Canon Smart App Doesn’t Detect Printers Several factors can cause the Canon Smart app to fail in recognizing your printer: 1. **WiFi connectivity issues** – If your printer and smartphone are not connected to the same WiFi network, detection won’t work. 2. **Outdated Canon PRINT app** – Using an old version of the app can cause compatibility issues. 3. **Incorrect printer setup** – If the printer wasn’t properly added during installation, the app may fail to locate it. 4. **Printer offline status** – Printers in sleep mode or offline won’t be detected. 5. **Router or network settings** – Firewalls, weak signals, or dual-band interference may block printer visibility. 6. **Mobile device issues** – Cache build-up or outdated OS can affect connectivity with the app. --- ### Step-by-Step Fixes for Canon Smart App Detection Issues #### 1. Ensure Both Devices Are on the Same Network * Confirm that your Canon printer and smartphone are connected to the same WiFi network. * Avoid switching between 2.4GHz and 5GHz bands if your router supports dual-band. --- #### 2. Restart Your Devices * Power off your printer, mobile device, and router. * Restart them after a minute to refresh the connection. * Reopen the Canon Smart app and try detecting the printer again. --- ![Screenshot 2025-08-28 122528](https://hackmd.io/_uploads/SyT4viaKlx.png) #### 3. Update the Canon PRINT App * Go to the **App Store (iOS)** or **Google Play Store (Android)**. * Search for **Canon PRINT Inkjet/SELPHY**. * Update to the latest version to fix bugs and improve compatibility. --- #### 4. Re-add the Printer in the App * Open the Canon Smart app. * Go to **Add Printer > Register Printer**. * Follow the setup wizard to reconnect your Canon device. * If prompted, enter your WiFi password again. --- #### 5. Check Printer’s Network Settings * On your printer control panel, navigate to **Network Settings**. * Run a **WiFi setup test** to confirm connectivity. * If the printer isn’t connected, reconnect it manually to your router. --- #### 6. Reset Network Settings on Printer * Press and hold the **WiFi button** on your Canon printer until the lamp flashes. * Select your WiFi network and enter the password. * Re-open the Canon Smart app and retry detection. --- #### 7. Clear Cache and Reinstall the App * On your smartphone, go to **Settings > Apps > Canon PRINT App > Storage**. * Clear cache and data. * If the issue persists, uninstall and reinstall the app. --- ### Advanced Troubleshooting Methods If the Canon Smart app still doesn’t detect your printer after the above steps, try the following: 1. **Assign Static IP Address** * Sometimes, dynamic IP changes confuse the app. Assigning a static IP to your Canon printer ensures stable detection. 2. **Disable Firewall or VPN** * Security software or VPNs on your mobile device may block network discovery. Disable them temporarily and retry detection. 3. **Check Router Settings** * Ensure that **AP Isolation** or **Guest Mode** is not enabled, as these prevent devices from communicating with each other. 4. **Update Printer Firmware** * Outdated firmware can cause app detection failures. Download the latest firmware from Canon’s official website or update directly from the printer’s control panel. --- ![Screenshot 2025-08-28 122449](https://hackmd.io/_uploads/BkuHvjptxx.png) ### Preventing Canon Smart App Detection Issues To avoid future problems, follow these preventive measures: * Keep your Canon printer and Canon PRINT app updated. * Regularly restart your router to maintain strong connectivity. * Ensure your mobile device software is up to date. * Avoid switching networks while printing. * Place the printer closer to the WiFi router for better stability. --- ### When to Contact Support If you’ve tried all troubleshooting steps and the Canon Smart app still won’t detect your printer, the issue might be more technical. It could involve firmware corruption, router configuration issues, or deeper system conflicts. --- ### Conclusion The Canon Smart app is a convenient tool for wireless printing, but detection issues can interrupt your workflow. From WiFi problems to outdated firmware, several factors may cause your printer to go undetected. By following the troubleshooting steps above, you can usually resolve the issue quickly. For persistent errors, professional assistance is just one call away. Dial **1-844-957-6312** to get your Canon Smart app and printer working seamlessly again.