Printer won't connect to phone via Wi-Fi: full diagnostics and fix

Modern printers with support Wi-Fi Direct Cloud printing promises convenience: printing a document from your phone in a couple of clicks. But in practice, users face the problem of Canon PIXMA, HP DeskJet or Brother DCP stubbornly refuse to connect to a smartphone. The problem could lie in the router settings, the printer's firmware, or even limitations of the mobile operating system.

According to research data IDCUp to 40% of printer support calls are related to wireless connection errors. In 70% of cases, the problem can be resolved without calling a technician—it's enough to correctly diagnose the source of the problem. In this article, we'll look into this. Unique nuances of connecting printers to phones running Android 13+ and iOS 16+, which are not covered in the standard manufacturer's instructions.

If your printer used to work via Wi-Fi but now the connection has disappeared, start by checking your network settings. If you're setting up a connection for the first time, first make sure your printer model even supports it. mobile printing (Older devices may lack a Wi-Fi module or require an adapter.) Below, we'll cover all possible scenarios—from basic errors to rare software conflicts.

1. Checking the compatibility of the printer and phone

Before attempting to connect, please make sure your printer and smartphone are technically compatibleFor example, printers Epson EcoTank series ET-2800 require an app for mobile printing Epson Smart Panel, which does not support Android 8.0 and below. And the devices Brother with technology AirPrint may not work with some custom firmware Xiaomi or Realme.

Here are the key points to check:

• 📱 Phone OS version: iOS 12+ or Android 9+ (for most modern printers). Android 7 and functions below may not work Google Cloud Print or Mopria.
• 🖨️ Printer model: Check the documentation to see if your device supports it. Wi-Fi Direct, AirPrint (for iPhone) or Mopria (for Android).
• 📶 Wi-Fi type: Printers HP OfficeJet older than 2018 do not work in networks 5 GHz - only 2.4 GHz.
• 🔄 Printer firmware: Outdated software may be blocking the connection. For example, Canon MG3600 requires an update to work with iOS 15+.

If your printer was released before 2016, there is a high probability that it simply does not support modern encryption protocols (WPA3) or Wi-Fi standards (802.11ac). In this case, only purchase will help. Wi-Fi adapter for printer (For example, TP-Link TL-WPS510U) or switching to a wired connection via OTG cable.

2. Wi-Fi setup errors on the printer

The most common cause of failures is the network is incorrectly configured on the printer itselfMany users skip the step of linking their device to the router, trying to connect directly from their phone. This is like trying to make a phone call without inserting a SIM card.

To check your current printer settings:

1. Press the button on the printer Wi-Fi or Settings (depending on the model).
2. Find the section in the menu Network settings → Wireless network.
3. Check if the printer is connected to your network. If not, select it from the list and enter the password.
4. On some models (Epson L3250) you need to specify it manually IP address or DNS.

If the printer does not see your network at all, the problem may be:

• 🔌 Router operating mode: Turn off the function Hide SSID in the router settings - many printers cannot connect to hidden networks.
• 🔒 Encryption type: Printers Samsung Xpress do not support WPA3 - switch the router to WPA2-PSK (AES).
• 📡 Wi-Fi channel: If the router is operating on the channel 12-14 (allowed in Russia, but banned in the EU), the printer may not see it. Switch channels. 1-11.

⚠️ Attention: On some printers (HP Neverstop, Brother HL-L2350DW) After resetting the Wi-Fi settings, the mode is automatically turned on Wi-Fi DirectIn this case, the phone will see the printer's network (for example, DIRECT-HP-OfficeJet-Pro-9010), but printing will still require a connection to the main network.

3. Problems with the mobile app

Printer manufacturers insist on using proprietary applications (HP Smart, Canon PRINT, Epson iPrint), but often it is they who become the source of problems. For example, HP Smart version 12.5.0 has a bug with authorization on Android 13, due to which the printer does not appear in the list of devices.

What to do if the app doesn't see the printer:

1. Uninstall the app and reinstall it from App Store or Google Play.
2. Check permissions: the app needs access to Storage, Camera (for scanning) and Locations (to search for devices on the network).
3. Disable VPN or Modem mode on the phone - they can block local printer discovery.
4. For iPhone: go to Settings → Wi-Fi and make sure that your phone is connected to the same network as the printer (not to your mobile internet).

If the proprietary app stubbornly doesn't work, try alternative methods:

• 📱 Google Cloud Print (for older printers, but the service has been closed since 2020 - it only works through workarounds).
• 🖥️ Mopria Print Service (built into Android, supports most printers without additional apps).
• 🍎 AirPrint (for iPhone, works with most modern printers without installing software).

4. Conflicts in router settings

Sometimes the problem is not with the printer or the phone, but with router. Especially if you have:

• Dual-band router (2.4 GHz + 5 GHz) with a common network name (SSID).
• Feature enabled Secure Wi-Fi or Connection protection (for example, on routers Keenetic).
• Activated Guest access with local traffic restrictions.

Solutions for popular routers:

If you have a router from a provider (Rostelecom, MTS, Beeline), there's a high probability that local network functions are disabled in its firmware. In this case, the only solution is switching the router to bridge mode or purchasing your own router.

⚠️ Attention: On routers with firmware OpenWRT or DD-WRT the protocol may be disabled mDNS (necessary for AirPrint And Google Cloud Print). To enable it, run the command:

uci set dhcp.@dnsmasq[0].enable_tftp='1'
uci set dhcp.@dnsmasq[0].localise_queries='1'
uci commit
/etc/init.d/dnsmasq restart

5. Resetting the printer settings and reflashing the firmware

If all the previous steps do not help, you will have to resort to tough measures: resetting the printer to factory settings or updating its firmware. This is relevant if:

• The printer used to work, but after updating my phone or router it stopped connecting.
• Errors like this appear in the printer menu Wi-Fi Error 0x80 or Connection Failed.
• The proprietary app says "device not supported."

How to reset your printer:

1. Press and hold the button Reset (or Cancel + Wi-Fi) for 10-15 seconds.
2. On printers Epson clamp down Up arrow + OK for 5 seconds.
3. For HP use a combination Cancel + Color copy + Black and white copy.

How to update firmware:

1. Download the latest version of the software from the manufacturer's official website (for example, for Canon MG3640S this is a file mg3600-v1120-win-mac-osx).
2. Connect the printer to your computer via USB and run the update file.
3. For printers Brother a special utility may be required BRAdmin Professional.

What should I do if the printer does not turn on after resetting?

If the printer doesn't respond to buttons after resetting, unplug it for 30 seconds, then hold the power button for 10 seconds. If the lights don't light, the problem is with the power supply or motherboard (requires repair).

⚠️ Attention: Updating printer firmware via Wi-Fi (Without USB) is prone to malfunctions. If the process is interrupted, the device may become bricked. Always use a wired connection!

6. Alternative ways to print from your phone

If you still can't connect your printer via Wi-Fi, don't despair. Here's 5 working workarounds:

• 🔌 USB-OTG cable: Connect the printer directly to your phone via an adapter (works with most models) Canon And Epson). For iPhone will be needed Lightning-to-USB adapter + external power source.
• 🖥️ Shared access via PC: Connect the printer to the computer, turn it on General access in Windows/macOS settings, then add it to your phone as a network printer.
• ☁️ Cloud printing: Upload the document to Google Drive or Dropbox, then send it to print via the printer's web interface (if it supports Google Cloud Print or Epson Connect).
• 📧 Email printing: Many printers (HP OfficeJet, Brother MFC) have their own email addresses. Send the document to this address, and the printer will print it automatically.
• 📱 Third-party applications: PrinterShare or PrintHand Support printing to older printers without Wi-Fi via Bluetooth or USB.

For owners iPhone There is another life hack: if the printer supports AirPrint, but it doesn't connect via Wi-Fi, try turning it on on your phone Modem mode, and connect the printer to this temporary network. This sometimes works when the regular connection is blocked by the router.

7. Rare causes and specific errors

Sometimes the problem lies in the less obvious details. Here are a few non-standard scenarios, which are not mentioned in the instructions:

• 🕒 Time mismatch: If the time on the printer and the phone is different (for example, due to the printer being turned off Automatic date and time updates), some authentication protocols (for example, EAP-SIM) will block the connection.
• 🔋 Printer energy saving: On some models (Xerox WorkCentre) The Wi-Fi module turns off after 5 minutes of inactivity. Check your settings. Sleep Mode.
• 📵 Interference from other devicesMicrowaves, wireless headphones, or nearby Wi-Fi networks on the same channel can cause interference. Try switching your router's channel. 6 or 11 (less busy).
• 🔐 MAC address blocking: Some routers (eg. Zyxel Keenetic) block new devices by default. Add the printer's MAC address to the whitelist.

If the printer displays a specific error code (for example, E08 on Canon or 50.4 on HP), look for its decoding in the official documentation. For example, an error B200 on Epson means dried ink in the print head - and no Wi-Fi settings will help here.

To diagnose network problems on Android you can use the app Fing or WiFi AnalyzerThey will show whether the phone can see the printer on the local network and help identify the source of interference.

FAQ: Frequently Asked Questions

🔹 Why can't my iPhone see my printer even though it's connected to Wi-Fi?

On iPhone the printer must support AirPrint or Mopria. If it is on the compatible list Apple website, but it is not displayed:

1. Make sure your phone and printer are on the same network (not via VPN or mobile internet).
2. Restart the printer and router.
3. Disable it in your router settings. AP Isolation.

If the printer does not support AirPrint, use the manufacturer's proprietary application or alternative methods (e.g. Google Cloud Print via browser).

🔹 How to connect a printer to a phone without a router (directly)?

Most modern printers support Wi-Fi Direct:

1. Activate the mode on the printer Wi-Fi Direct (usually a button with a phone icon).
2. On your phone, connect to the printer's network (the name will be something like DIRECT-HP-OfficeJet-Pro-9010).
3. Launch the branded application (HP Smart, Canon PRINT) and select the document to print.

If Wi-Fi Direct doesn't work, try:

• Connect via Bluetooth (if the printer supports it).
• Use USB-OTG cable.

🔹 Why does the printer connect but not print from my phone?

Possible reasons:

• 📄 Incorrect file format: Printers do not support printing .pages (Mac) or .xps (Windows). Convert to PDF.
• 🖨️ Print queueThere may be a document stuck on the printer or in the application. Clear the queue in the printer menu.
• 🔌 Out of memory: Old printers (Canon MP250) cannot process files larger than 10 MB. Reduce the image resolution.
• 📶 Unstable connectionIf the Wi-Fi signal is weak, the printer may receive the document but not print. Move your phone closer to the router.

🔹 Is it possible to connect an old printer (without Wi-Fi) to a phone?

Yes, there are several ways:

1. Wi-Fi adapter for printer (For example, TP-Link TL-WPS510U or Edimax PR-1101). Connects to the printer's USB port and shares its own network.
2. Shared access via PC:
   1. Connect the printer to your computer via USB.
   2. Turn on General access in the printer settings (Windows: Control Panel → Devices and Printers → Printer Properties → Access).
   3. On your phone, add the printer using your computer's IP address.
3. Cloud services like Google Cloud Print (requires a PC with permanent internet access).

For printers without USB (eg. HP LaserJet 1020) will be needed network print server (For example, D-Link DP-301U).

🔹 Why did my printer stop connecting after updating Android/iOS?

Mobile OS updates often break compatibility with older printers. What to do:

• 📱 Android: Delete the cache of the printer's proprietary application (Settings → Apps → Storage → Clear Cache).
• 🍎 iOS: Reinstall the app and grant all permissions again.
• 🖨️ For all OS: Check if the Wi-Fi settings on your printer have been reset. Sometimes updating your phone changes the network encryption protocol (for example, from WPA2 on WPA3), and the printer loses connection.

If the problem appeared after the update iOS 16+, try disabling the function Private Wi-Fi address (Settings → Wi-Fi → (i) next to the network → Private address). Some printers block devices with random MAC addresses.