HP DeskJet 3755 WiFi Setup Failing? Fix It Fast

1. Problem Recognition (Hook)

You just got your HP DeskJet 3755, turned it on, and now you're stuck at one step—
connecting it to WiFi.

Maybe the printer won’t find your network.
Or it keeps disconnecting.
Or you’re not sure where to even start.

This is one of the most common setup issues—and yes, it can feel confusing.
But once you follow the correct steps, your printer will be connected in minutes.

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2. Quick Answer Summary (Featured Snippet Ready)

To set up HP DeskJet 3755 printer to WiFi:

• Turn on the printer and enable setup mode
• Connect it to your WiFi using HP Smart app or wireless setup
• Ensure your phone/computer is on the same network
• Complete setup and add the printer

Using the HP Smart app is the fastest and easiest method.

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3. Before You Start (Important Setup Requirements)

Make sure you have:

• WiFi network name (SSID) and password
• Printer powered ON
• Smartphone or computer ready
• Stable internet connection

Skipping these basics often causes setup failure.

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4. Step-by-Step: Setup HP DeskJet 3755 to WiFi

Method 1: Using HP Smart App (Recommended)

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Step 1: Install HP Smart App

• Go to App Store / Google Play / HP website
• Download HP Smart

This is the easiest setup method.

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Step 2: Reset Printer to Setup Mode

• Turn ON printer
• Press and hold Wireless + Cancel button (X) for 5 seconds
• Wait until blue light starts blinking

This puts printer in setup mode.

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Step 3: Connect Your Device to WiFi

• Connect phone or computer to your WiFi network
• Ensure it’s the same network you want for printer

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Step 4: Open HP Smart App

• Launch HP Smart
• Tap Add Printer / Setup New Printer
• App will detect your printer automatically

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Step 5: Enter WiFi Password

• Select your WiFi network
• Enter password
• Wait for connection confirmation

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Step 6: Finish Setup

• Follow on-screen instructions
• Print test page to confirm

Your printer is now connected!

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5. Alternative Method: Using WPS (Quick Setup)

If your router supports WPS:

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Step 1: Press WPS Button on Router

• Press WPS button on router

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Step 2: Press Wireless Button on Printer

• Press and hold wireless button for 3–5 seconds

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Step 3: Wait for Connection

• Printer connects automatically
• WiFi light becomes solid

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6. Common Errors & Fixes

❌ Printer Not Found in HP Smart App

• Reset printer to setup mode
• Restart app and try again

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❌ WiFi Light Not Blinking

• Press wireless + cancel buttons again
• Ensure printer is in setup mode

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❌ Wrong Password Error

• Re-enter password carefully
• Check uppercase/lowercase

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❌ Printer Connected but Offline

• Restart printer and router
• Set printer as default

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❌ Setup Failed Repeatedly

• Move printer closer to router
• Avoid weak signal

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7. Advanced Troubleshooting (Deep Fixes)

🔧 Reset Network Settings

• Press Wireless + Cancel button
• Wait for reset
• Reconnect via HP Smart

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🔧 Use USB Setup (Fallback Method)

1. Connect printer to computer using USB
2. Open HP Smart
3. Choose Setup via USB
4. Enter WiFi details

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🔧 Check WiFi Band (Important)

• HP DeskJet 3755 supports 2.4GHz only
• If using 5GHz, switch to 2.4GHz

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🔧 Disable VPN or Firewall

• Turn OFF VPN temporarily
• Disable firewall during setup
• Re-enable after setup

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🔧 Update Printer Firmware

• Open HP Smart
• Check for updates
• Install latest version

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8. Pro Tips to Avoid Setup Issues

• Always reset printer before new setup
• Keep printer within strong WiFi range
• Avoid switching networks frequently
• Save WiFi password correctly
• Use HP Smart for future management

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9. People Also Ask (FAQs)

Q1. How do I connect HP DeskJet 3755 to WiFi?

Use HP Smart app, put printer in setup mode, and enter WiFi password.

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Q2. Why won’t my HP DeskJet 3755 connect to WiFi?

It may not be in setup mode or the WiFi password is incorrect.

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Q3. Does HP DeskJet 3755 support 5GHz WiFi?

No, it supports only 2.4GHz networks.

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Q4. How do I reset WiFi on HP DeskJet 3755?

Press and hold wireless and cancel buttons until light blinks.

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Q5. Can I connect printer without app?

Yes, using WPS or USB setup method.

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Q6. Why is my printer connected but not printing?

Check connection, drivers, or set it as default printer.

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10. Soft Conclusion

Setting up your HP DeskJet 3755 printer to WiFi may seem tricky at first—but it’s actually simple when done correctly.

The key is to put the printer in setup mode and use the right method, especially the HP Smart app.
Follow the steps above carefully, and your printer will be ready to print wirelessly in no time.