How to Connect an HP DeskJet 3639 Printer to Wi-Fi: 3 Proven Methods + Troubleshooting

Wireless printer connection HP DeskJet 3639 Connecting to a home or office Wi-Fi network saves time and eliminates the clutter of cables. However, many users encounter difficulties: the device can't find the network, constantly disconnects, or requires reconnecting after each shutdown. In this article, we'll look at three official connection methods (via the printer control panel, HP Smart software and WPS), as well as typical errors and their solutions.

Feature of the model HP 3639 — dual-band Wi-Fi support (2.4 and 5 GHz), but not all routers work with it correctly out of the box. For example, if your router uses WPA3 encryption or hides the SSID, the printer may not see the network. We took these nuances into account and added compatibility table with popular routers, as well as instructions on setting up a network for stable printing.

1. Preparation: What to check before connecting

Before you begin setting up, make sure the following basic requirements are met:

• 🔌 Printer HP DeskJet 3639 plugged into a power outlet and within Wi-Fi range (no further than 5-7 meters from the router).
• 📶 The wireless network indicator on the router is lit (if it blinks orange, the network is disabled).
• 💻 The computer or smartphone you'll be using to set up the connection is already connected to the same Wi-Fi network.
• 🔄 The printer's network settings have been reset (if you've tried connecting it before). To do this, hold down the button Wi-Fi for 10 seconds.

If your router supports double range (2.4 and 5 GHz), temporarily disable 5 GHz in your router settings. Printers HP often work better with the network 2.4 GHz, especially if there are many other devices in range. Here's how to do it:

1. Open the router's web interface (usually at 192.168.0.1 or 192.168.1.1).
2. Go to the section Wireless Network (Wi-Fi) → 5 GHz Settings.
3. Uncheck the box Enable wireless broadcasting and save the changes.

⚠️ Note: If after disabling 5 GHz the printer still does not connect, check if your router is using WPA3 encryption. Many models HP do not support this standard - switch to WPA2-PSK (AES) in security settings.

2. Method 1: Connecting via the printer control panel

This is the most universal method, which works even without additional software. The instructions are for the printer. HP DeskJet 3639 with factory settings:

1. Click the button Wi-Fi on the printer's control panel (antenna icon). Wait until the blue indicator light starts flashing.
2. Hold the button Wi-Fi And Cancel simultaneously for 5 seconds until it lights up orange indicator - This is the network setup mode.
3. The printer screen will ask you to select a network. Use the buttons ↑/↓ to scroll through the list and select your Wi-Fi network.
4. Enter the Wi-Fi password using the keys on the panel (use the button # to switch case). Confirm your input.

If the printer is successfully connected, the light will turn on. blue Wi-Fi indicatorIf not, check:

• 🔍 The password you entered is correct (case sensitive!).
• 📡 Network signal: the printer should be no further than 3-4 meters from the router during setup.
• 🔄 Restart your router and printer, then try again.

⚠️ Attention: On some router firmware (for example, Keenetic or ASUS RT-AX) printer HP 3639 may not see the network due to it being turned on MAC address filterDisable it in your router settings while connected.

The printer is plugged in|The router is not in "guest network" mode|You have your Wi-Fi password handy|The MAC address filter is disabled on the router-->

3. Method 2: Connecting via the HP Smart app

Application HP Smart (available for Windows, macOS, Android and iOS) automates the connection process and allows you to manage the printer remotely. Download it from official HP website (do not use third-party sources!).

Step-by-step instructions:

1. Install and open HP Smart on a device connected to the same Wi-Fi network as the printer.
2. Click Add a printer and select Setting up a new printer.
3. Follow the on-screen instructions. The program will prompt you to:
• 📱 Bring your smartphone close to the printer for automatic detection (via Bluetooth).
• 🔗 Enter your Wi-Fi password manually if automatic connection doesn't work.

Wait for the setup to complete. If connected successfully, the printer will appear in the list of devices.

If HP Smart can't find the printer:

• 🔄 Restart your printer and try searching again.
• 📵 Temporarily disable Bluetooth on your phone/PC - it may interfere with detection.
• 🔌 Connect the printer to the router with a cable Ethernet (if there is a port) and try setting up Wi-Fi via the web interface HP Smart.

What should I do if HP Smart gets stuck at the "Searching for Printer" stage?

Clear the app cache (in your smartphone settings or via %appdata% on your PC), then restart it. If the problem persists, uninstall and install HP Smart again, after disabling the antivirus - it may block the program's network requests.

4. Method 3: Connecting via WPS (button on the router)

Technology WPS (Wi-Fi Protected Setup) Allows you to connect a printer to the network without entering a password—just press a button on the router. However, not all routers support this method. Check if your router has a button labeled WPS or the 🔄 icon.

Instructions:

1. On the printer HP 3639 press and hold the button Wi-Fi for 3 seconds until the blue indicator flashes.
2. For 2 minutes press the button WPS on the router. The printer's indicator light should stop blinking and remain solid blue.
3. If the connection does not occur, repeat the process by holding the button WPS on the router longer (up to 5 seconds).

Limitations of the method:

• ❌ Doesn't work if WPS is disabled on the router (check the settings section Wireless Network → WPS).
• ❌ Some models HP do not support WPS in networks with WPA3 encryption.
• ❌ If the router is dual-band, WPS may only work for the network 2.4 GHz.

5. Common mistakes and their solutions

Even after successful connection of the printer HP DeskJet 3639 may be unstable. Let's look at the most common problems and how to fix them:

🔴 The printer can't find the Wi-Fi network

Possible causes and solutions:

• 📡 The network operates in the range 5 GHz — switch to 2.4 GHz.
• 🔒 It's enabled in the router settings MAC address filter - disable it or add the printer's MAC address to the list of allowed ones.
• 📵 The network is hidden (SSID Broadcast is disabled) - temporarily make it visible.

🟡 The printer connects but doesn't print.

Check the following:

• 🖨️ Are the drivers installed for HP 3639 on your computer? Download them from official HP website.
• 📄 There are no stuck print jobs in the print queue (open Devices and Printers → HP DeskJet 3639 → View Print Queue).
• 🌐 The printer and computer are connected to the same network (for example, not to the guest).

🟠 The printer keeps disconnecting from Wi-Fi

This problem is often related to the energy saving settings of your router or printer:

• ⚡ Turn off power saving mode on the printer: Settings → Power Saving → Off
• 📡 Disable it on your router automatic channel switching (select a fixed channel, such as 6 or 11).
• 🔄 Update your printer firmware via HP Smart (chapter Printer Settings → Software Update).

⚠️ Attention: If the printer HP 3639 After updating the firmware, it stopped connecting to Wi-Fi. Perform a reset: hold down the button Cancel And Black and white printing simultaneously for 10 seconds. This will reset the network to factory settings.

6. Optimize Wi-Fi for stable printing

To the printer HP DeskJet 3639 To ensure the connection works without interruptions, configure the router according to these recommendations:

Additional tips to improve communication:

• 📍 Place the printer and router in the same room, avoiding obstacles (walls, metal objects).
• 🔄 Update your router firmware—outdated versions may conflict with printers.
• 🛡️ Disable the function in your router Band Steering (automatic switching between 2.4 and 5 GHz), if available.

Important: If your router supports the "Guest Network" feature, never connect a printer to it—this will limit access to local devices, and printing from your computer will become impossible.

7. Alternative connection methods

If you connect HP DeskJet 3639 If you can't connect to Wi-Fi, consider alternative options:

🔌 USB connection

The most reliable, but inconvenient, method. Suitable if:

• The printer will be used with one computer.
• The Wi-Fi network is unstable or absent.

Simply connect the printer to your PC with a cable. USB Type-B (included) and install the drivers.

📱 Connecting via HP Wireless Direct

This feature allows you to connect devices directly to the printer without a router:

1. On the printer, press and hold the button Wi-Fi And Information simultaneously for 5 seconds.
2. The network name will appear on the screen (DIRECT-xx-HP DeskJet 3639) and password.
3. Connect your computer or smartphone to this network and print via HP Smart.

Limitation: You can only connect to the printer at a time. one device.

🌐 Connect via Ethernet (if available)

Some modifications HP 3639 equipped with a connector RJ-45In this case:

1. Connect the printer to the router with a network cable.
2. In the router settings, assign a static IP address to the printer (in the section DHCP → Address Reservation).
3. Install the printer on your computer as a network printer.

FAQ: Frequently Asked Questions about Connecting the HP DeskJet 3639

How do I reset Wi-Fi settings on an HP 3639 printer?

Press and hold the button Wi-Fi And Cancel simultaneously for 10-15 seconds until all lights go out. After the printer restarts, the network settings will be reset.

❓ Why does the printer connect to Wi-Fi but not print from my phone?

Make sure that:

• There is an application installed on the phone HP Smart.
• The printer and phone are connected to one network (not to mobile internet!).
• It's enabled in the printer settings. AirPrint (for iPhone) or Mopria (for Android).

❓ Is it possible to connect the HP 3639 to Wi-Fi without a computer?

Yes, use:

• Printer control panel (method 1 from the article).
• Application HP Smart on a smartphone (method 2).
• The WPS button on the router (method 3), if supported.

❓ How do I find the IP address of a printer on the network?

Print self-diagnostics page:

1. Press and hold the button Information on the printer 5 seconds.
2. The IP address will be listed in the section Network information.

Or check the list of connected devices in the router's web interface (section DHCP clients).

❓ Why does my printer lose Wi-Fi connection after turning it off?

Possible reasons:

• It's enabled on the router. power saving mode For Wi-Fi, turn it off.
• The printer is set to turn off automatically - please disable this feature in the menu Settings → Power Saving.
• The printer's IP address changes every time you connect. Set a static IP address in your router settings.