You typed the password. Nothing worked. A Canon PIXMA TR4720 not connecting to WiFi is frustrating, especially when you need a page in five minutes.
The good news is that this problem is common and usually fixable. Most failures come from a short list of causes. These include a wrong password, a 5 GHz-only network, a weak signal, outdated setup software, or router security settings that clash with the printer.
This guide fixes the problem in a smart order. You start with simple checks. Move to network reconfiguration or driver reinstallation only if you must. You also get tables, a FAQ, and buying advice for US shoppers.
New to wireless printing? Start with our basic guide on how to connect a printer to Wi-Fi, then come back here.
Why Is My Canon PIXMA TR4720 Not Connecting to Wi-Fi?
Quick answer: The Canon PIXMA TR4720 supports only 2.4 GHz Wi-Fi (802.11b/g/n). It often fails to connect because of a 5 GHz-only network, a wrong password, a weak signal, incompatible router security, or unfinished setup. Check the network band and password first. Then restart the printer and router.
Think of the connection as a chain with three links: the printer, the router, and your phone or computer. If one link breaks, printing stops. Knowing which link failed saves time.
Printer-side problems include a mistyped password or an old saved network. Router-side problems include band, security, and signal strength. Device-side problems include missing drivers, a VPN, or a firewall.
Run this quick diagnostic list before you change anything:
- Other devices fine? If your phone also drops Wi-Fi, fix the router first.
- 2.4 GHz on? The TR4720 cannot join a 5 GHz-only network.
- Anything new? A new router, provider, or password often breaks the saved link.
- Setup finished? A stopped install can leave the printer half configured.
- Same network? Your phone or PC must share the printer’s local network.
For a brand-neutral checklist, read why won’t my printer connect to Wi-Fi.
Incorrect Wi-Fi Password or Network Name
A single wrong character blocks the connection. Wi-Fi passwords are case-sensitive, so “Home” and “home” are different. The printer will not join, and you may see an error.
Picking the wrong network name (SSID) is just as common. Many homes have guest networks, extenders, and neighbors with similar names. Check the label on your router or open the router app to confirm the exact name and password.
Unsupported Wi-Fi Frequency or Security Settings
Wi-Fi uses radio bands. The 2.4 GHz band travels farther and passes through walls better. The 5 GHz band is faster but covers less distance. Canon lists the TR4720 as a 2.4 GHz device, so a router set to 5 GHz only will not work.
Security matters too. Canon lists WPA-PSK and WPA2-PSK options for this printer. A router set to WPA3-only can cause setup trouble. Check your router for a WPA2/WPA3 mixed mode instead of lowering security.
Weak Wireless Signal or Router Problems
Distance, thick walls, and interference weaken the signal. Microwaves, cordless phones, and baby monitors can also disturb the 2.4 GHz band. Sometimes the router just has a short outage.
For setup, put the printer close to the router. Our tips on where to place a printer at home also help with long-term signal strength.
Outdated Drivers or Incomplete Printer Setup
A computer needs the right driver to talk to the printer. A missing driver, an interrupted install, or an outdated operating system can hide the printer. The printer may show Wi-Fi as connected, yet your PC still cannot find it.
Always download model-specific software from the official Canon USA PIXMA TR4720 support page. If you want a full walkthrough, see how to install printer drivers correctly.
How to Fix Canon PIXMA TR4720 Not Connecting to Wi-Fi
Work through these fixes in order. Each early step is low risk. Stop as soon as the printer connects.
- Restart the printer and the Wi-Fi router.
- Confirm that a 2.4 GHz network is on.
- Re-enter the password and review router security.
- Move the printer closer to the router.
- Run Canon’s wireless setup again.
- Update or reinstall the Canon printer driver.
- Check VPN and firewall interference.
- Reset network settings only if nothing else works.
Restart the Printer and Wi-Fi Router
Step 1. A restart clears small glitches that cause many failures. Turn off the printer. Then unplug the router for about 30 seconds and plug it back in.
Wait until the router’s internet light is steady. Power the printer back on and try setup again. This simple reset fixes more cases than people expect.
Verify the 2.4 GHz Wi-Fi Network
Step 2. Open your router app or admin page. Confirm that a 2.4 GHz network is switched on. Make sure the printer is not being pushed toward a 5 GHz-only network.
Some routers combine both bands under one name. If setup keeps failing, look for a compatibility option that splits the bands. You can also turn off 5 GHz briefly during setup, then turn it back on afterward.
Budget printers from other brands share similar quirks. If you also own HP gear, see how to fix HP DeskJet 2855e Wi-Fi connection problems.
Check the Wi-Fi Password and Router Security
Step 3. Type the password again, slowly. Turn on “show password” if you can. Check capital letters and special characters.
If login fails again and again, review WPA2 and WPA3 settings. Contact your router maker instead of weakening your network security. If your router uses MAC filtering, add the printer’s address to the allowed list. Our guide to office printer security basics explains why you should keep protection on.
Move the Printer Closer to the Router
Step 4. Place the printer in the same room as the router during setup. Keep it away from microwaves and cordless phones. Fewer walls means a stronger signal.
Retry the connection before you touch advanced router settings. Once setup works, you can move the printer to its final spot and test the signal there.
Run Canon Wireless Setup Again
Step 5. Canon uses a method called Easy Wireless Connect. On the printer, press and hold the Menu/Wireless connect button until “Processing…” appears. Then release it.
Next, finish setup on your computer. Download the setup file from Canon’s support page, run it, and click Start Setup. You can also use the Canon PRINT Inkjet/SELPHY app on a phone. Never done this before? Our guide on how to set up a printer for the first time helps.
Update or Reinstall the Canon Printer Driver
Step 6. Remove the old printer entry from your computer. On Windows, open Printers and Scanners in Settings. On a Mac, open System Settings, then Printers and Scanners.
Then download fresh software from Canon’s official page. Published specs list support for Windows 11, 10, 8.1, and 7 SP1, plus macOS 10.12.6 and newer, and ChromeOS. Check Canon’s page for your exact OS version, because older packages may not cover the newest releases.
Temporarily Check VPN or Firewall Interference
Step 7. A VPN can hide the printer from your computer during setup. Canon’s own setup guide tells users to disconnect the VPN briefly and try again.
A firewall can also block discovery. Check that Canon’s software has permission on your private network. After testing, turn your VPN and firewall protection back on.
Reset Network Settings Only If Necessary
Step 8. A reset wipes the saved wireless details. Use it only after the simpler fixes fail. The exact menu path can vary, so follow Canon’s official instructions for your printer.
Before You Reset
Write down your network name, password, and router model. Make sure the earlier steps are done. Choose the option that clears only LAN or network settings if your menu offers it.
After the Reset
The printer forgets its Wi-Fi link. Run Easy Wireless Connect again, or use the Canon PRINT app. Then print a test page to confirm everything works.
How to Reconnect Canon PIXMA TR4720 to Wi-Fi
You need to reconnect after a new router, a new internet provider, or a changed Wi-Fi password. The old saved details no longer match. The printer will not fix this on its own.
This is different from first-time setup. A first install adds the printer to your network and your devices. A reconnect only updates the wireless details of a printer you already own. Most people finish in a few minutes.
Reconnect Using the Canon PRINT App
Connect your phone to the intended 2.4 GHz network. Open the Canon PRINT Inkjet/SELPHY app. Follow the prompts to add the printer and enter the wireless details. Our guide on how to connect a printer to a smartphone shows the general flow.
iPhone and iPad
Install the app from the App Store. When iOS asks for local network access, tap Allow. Without it, the app cannot see the printer.
Android
Install the app from Google Play. Allow the permissions the app requests, such as nearby devices or location. Keep Wi-Fi turned on during the whole process.
Once connected, learn how to print from a phone at home with fewer taps.
Reconnect Using a Windows PC or Mac
Start Easy Wireless Connect on the printer first. Then follow Canon’s model-specific install steps on the computer. Make sure the PC and printer use the same local network. If you use a laptop, our walkthrough on how to connect a printer to a laptop adds helpful detail.
Windows
Download the setup file from Canon, run it, and follow the screen. Choose the wireless option when asked.
Mac
Run the same setup file. If the printer does not appear later, add it in System Settings under Printers and Scanners.
Use WPS Only If the Router and Setup Support It
WPS is a quick-connect feature found on some routers. Many routers do not offer it, and some have it turned off. Do not assume your router has a WPS button.
Follow the exact Canon and router instructions if you try it. If WPS fails, go back to Easy Wireless Connect. It is the safer default.
Canon PIXMA TR4720 Wi-Fi Troubleshooting Table
Use this table to match your symptom to the likely cause and the next action. It helps you avoid needless resets or router changes.
| Problem or symptom | Possible cause | Recommended fix |
|---|---|---|
| Printer cannot find Wi-Fi | 5 GHz-only network or weak signal | Verify 2.4 GHz availability and move closer to the router |
| Incorrect password message | Wrong network credentials | Re-enter the Wi-Fi password |
| Printer connects but will not print | Device discovery or driver issue | Check the printer selection and reinstall the driver if needed |
| Printer repeatedly disconnects | Signal interference or router instability | Improve placement and restart the router |
| Setup software cannot detect printer | Incomplete setup, VPN, or firewall interference | Rerun setup and check discovery permissions |
| Wi-Fi stopped after router replacement | Saved network details no longer match | Run wireless setup again |
| Mobile device cannot find printer | Devices on different networks or app permissions | Connect to the same local network and check permissions |
| Connection fails after security changes | Router security incompatibility | Review supported security settings with the router maker |
Still seeing random drops? Read our guide on why your printer keeps going offline.
Wireless Setup Methods Compared for the Canon PIXMA TR4720
The best method depends on your device, your router, and whether the printer is already set up. Canon documents Easy Wireless Connect for both computer and mobile setup.
| Setup method | Best for | Key consideration |
|---|---|---|
| Canon PRINT app | iPhone, Android, and compatible mobile devices | Follow in-app setup instructions |
| Easy Wireless Connect | Windows PC or Mac | Install the correct Canon software |
| WPS setup | Compatible router and supported procedure | Verify WPS availability first |
| USB connection | Temporary or alternative computer connection | Requires a compatible USB cable and suitable driver |
The printer also offers Wireless Direct, which lets a phone join the printer without a router. It is handy for testing, but it does not replace your home network.
Which Wireless Setup Method Should You Choose?
Choose the Canon PRINT app if you have a supported smartphone. Choose Easy Wireless Connect if you prefer a computer.
USB gives you another way to print on a supported computer. It does not repair the wireless link, though. If your office relies on cables, compare a network printer vs USB printer for an office before you decide.
Find official downloads and manuals on Canon USA’s PIXMA TR4720 page.
What to Check When the Canon TR4720 Connects but Won’t Print
A strong Wi-Fi link does not guarantee that your computer or phone can find the printer. The fault may sit in the print queue, the driver, or the app. Separate network issues from software issues.
Once the printer shows as online, print a test page. A small document works best. If it prints, your network is fine and the earlier problem was a queue or driver error.
Check the Printer Status and Print Queue
On Windows or macOS, make sure the correct Canon printer is selected. Confirm it is not paused or marked offline. Clear stuck jobs, then send a small test file.
If the status flips to offline again, our guide on how to reconnect an offline printer covers the fix in detail.
Confirm Both Devices Use the Same Local Network
Your computer or phone and the printer must share one local network. Guest Wi-Fi often blocks this. So does client isolation, a router feature that stops devices from talking to each other.
Both devices may still reach the internet while failing to see each other. If many people use the printer, learn how to manage multiple devices with one printer.
Verify Drivers and Operating System Compatibility
Download drivers from Canon, not from third-party download sites. Confirm that the software supports your exact OS version. Do not assume that older driver packages support every new release.
If the printer is still missing, follow our fixes for a printer not showing on your computer.
Connectivity Specifications to Know for the Canon PIXMA TR4720
These details help you tell an unsupported network setup from a real printer fault. They can save you from buying a new printer you do not need.
| Feature | Canon PIXMA TR4720 specification | Why it matters |
|---|---|---|
| Wi-Fi standard | IEEE 802.11b/g/n | Identifies supported wireless standards |
| Wi-Fi frequency | 2.4 GHz | The printer requires a compatible 2.4 GHz network |
| Wireless security | WPA-PSK and WPA2-PSK options listed by Canon | Router security must be compatible |
| Alternative connection | Hi-Speed USB | Offers another supported connection method |
| Mobile setup | Canon PRINT Inkjet/SELPHY | Helps configure supported mobile devices |
| Paper capacity | 100 sheets of plain paper | Relevant to routine home-office printing, not Wi-Fi diagnosis |
| Print resolution | Up to 4800 x 1200 dpi | Describes print capability, not network reliability |
Source: Canon USA product specifications and support information.
Does Wi-Fi Connectivity Affect Print Quality?
Wi-Fi problems affect printer discovery, job delivery, and connection stability. They do not change the printer’s rated resolution. A dropped link may cancel a job, but it will not blur your text.
Blurry text, streaks, faded colors, or missing lines point to ink or printhead trouble. Our guides on why inkjet prints have lines and how to check printer ink levels help there. Ink yield and page coverage affect running costs, but they do not decide whether the printer can join Wi-Fi.
Speed, Resolution, and Duty Cycle in Plain English
Speed is measured in pages per minute (PPM). Canon rates the TR4720 at about 8.8 images per minute in black and 4.4 in color on letter-size paper. Learn more in what pages per minute means on a printer.
DPI means dots per inch. More dots can mean sharper detail. Our guide to printer resolution explained in simple terms shows when it matters.
Duty cycle is the number of pages a printer can handle in a month without extra wear. Check how much printing a home printer should handle before you buy.
Is the TR4720 Worth Buying or Keeping?
The TR4720 is a compact all-in-one that prints, copies, scans, and faxes. It has an automatic document feeder and automatic two-sided printing. That mix suits a home office or a student desk.
Check current prices at Amazon, Best Buy, and Staples before you buy. If you are comparing models, read HP DeskJet 2955 vs Canon PIXMA TR4720 and Canon TS4320 vs TS6520. For a wider view, see the best affordable all-in-one printer picks.
Weigh repair against replacement too. Our piece on when a home printer may not be worth repairing can help. Review printer warranty terms if your printer is still covered.
Smart Ways to Keep Ink Costs Low
Ink is the real cost of owning an inkjet. The sticker price is only the start. Learn why printer ink costs so much and how to save.
Compare original vs compatible printer cartridges before you buy. Use draft mode for everyday pages. For more tricks, see how to reduce home printing costs and calculate the true cost of owning a printer.
When to Contact Canon Support
Contact Canon when you have tried the steps above and the printer still fails. Repeated login failures, constant drops, or setup errors that will not clear all justify a call or chat.
Have these details ready:
- Your printer model (PIXMA TR4720)
- Your router brand and model
- Your operating system and version
- The exact error message or code
Use Canon USA’s official support portal for current drivers, setup guides, and service options. Avoid unofficial phone numbers you find on random web pages.
Signs That Further Troubleshooting May Be Needed
- The printer fails to connect on a verified compatible network with the correct password.
- Wireless setup keeps failing even when you follow Canon’s official steps.
- The printer shows constant error messages or seems to have a hardware fault.
You may also be facing a wider issue. Our list of common home printer problems can point you in the right direction.
Frequently Asked Questions About Canon PIXMA TR4720 Wi-Fi
1. Why is my Canon PIXMA TR4720 not connecting to Wi-Fi?
Common causes include a wrong password, an unsupported Wi-Fi frequency, weak signal strength, incompatible router security, or incomplete setup. Check the 2.4 GHz network and your password first. Then restart the router and rerun Canon’s wireless setup.
2. Does the Canon PIXMA TR4720 support 5 GHz Wi-Fi?
Canon lists the TR4720 as a 2.4 GHz Wi-Fi printer, not a 5 GHz one. If your router combines both bands under one name, make sure a compatible 2.4 GHz connection is available during setup.
3. How do I reconnect my Canon TR4720 after changing my Wi-Fi password?
Start Easy Wireless Connect on the printer and follow Canon’s setup steps with the new password. Use a supported computer or the Canon PRINT app to update the settings. Then confirm the printer appears on your network.
4. Why can’t my computer find my Canon PIXMA TR4720?
Your computer may be on a different network. The setup may be unfinished, or a firewall or VPN may block discovery. Check both network connections, then reinstall Canon’s printer software if needed.
5. How do I connect my Canon TR4720 to Wi-Fi without a computer?
Use the Canon PRINT Inkjet/SELPHY app on a compatible smartphone or tablet. Follow its wireless setup prompts. Keep your phone on the intended network and allow the permissions the app asks for.
6. Can I connect the Canon PIXMA TR4720 using WPS?
WPS may work if your router and Canon’s setup procedure both support it. Read the instructions for both devices before you try. If WPS is not available, use Easy Wireless Connect instead.
7. Why does my Canon TR4720 keep disconnecting from Wi-Fi?
Weak signal, interference, router instability, or network changes can cause repeated drops. Move the printer closer to the router and restart your network gear. Then check whether the problem returns.
8. Why does my Canon printer show offline even when Wi-Fi works?
The printer may be on Wi-Fi but still unavailable to your computer. Common reasons are the wrong printer selection, a stuck print queue, different networks, or a driver problem. Check the status, then run a test print.
9. Will resetting my Canon TR4720 fix Wi-Fi problems?
A network reset can help when the saved wireless setup is wrong. Treat it as a later step. Write down your network details first and follow Canon’s model-specific instructions, because you must set up the printer again.
10. Where can I download the Canon PIXMA TR4720 wireless driver?
Download the driver and setup software from Canon USA’s official PIXMA TR4720 support page. Pick the correct operating system and follow Canon’s install steps. Avoid unofficial driver sites.
Conclusion: Get Your Canon PIXMA TR4720 Back Online
A Canon PIXMA TR4720 not connecting to WiFi almost always has a simple cause. The most effective fixes are to verify the 2.4 GHz network, check the Wi-Fi password, restart the router, rerun wireless setup, and install the correct Canon software.
Change one thing at a time. That way you know exactly what worked. Do not reset the printer before you try the easier fixes.
If the problem continues, use Canon’s official support resources. For more help with everyday printer trouble, browse our guide to why office printers stop working frequently and our guide to choosing a printer for a small office.
