Modern office equipment demands flexibility, and the ability to print wirelessly is a standard that users have become accustomed to. Model HP DeskJet 4155 (often referred to simply as the HP 415) is a popular solution for home and small businesses that combines print, scan, and copy functions. However, initial setup wireless connection This often causes difficulties, as the device does not have a full color display for entering passwords, relying on indicators and mobile applications.
In this article, we'll take a detailed look at all the possible ways to integrate your MFP into a local network. You'll learn how to use the button WPS For instant pairing, how to set up the device via smartphone using HP Smart And what to do if your router hides your network name. Proper configuration will allow you to print documents from any device in your home, without being tied to cables.
Before you begin, make sure your router is working properly and you know your WiFi password. It's important to understand that printers in this series only support the following range: 2.4 GHz, so dual-band routers must have guest mode or frequency splitting enabled to successfully connect legacy devices.
Equipment preparation and compatibility testing
The first step before starting setup is to physically prepare the device. Make sure the cartridges are installed and paper is loaded in the tray. The power light should be solid, not blinking, indicating it's ready to use. If you've just unpacked the device, initial calibration may take a few minutes.
It is critical to check the frequency range of your router. Model HP 415 Doesn't support modern 5 GHz networks. If your router broadcasts a single network with aggregated frequencies (Smart Connect), the printer may not see the signal or constantly lose connection. In such cases, it's recommended to temporarily separate the networks on the router or enable the guest network strictly on the 2.4 GHz frequency.
⚠️ Note: Router interfaces and mobile apps are updated regularly. The layout of menu items may differ from those described, so please consult the latest documentation from your network equipment manufacturer.
It is also worth preparing a mobile device (smartphone or tablet) with the application installed in advance. HP SmartThis is the primary configuration tool, especially if your computer doesn't have a CD drive or the necessary drivers. It's best to download the application in advance to avoid interrupting the setup process.
WPS method: quick connection without password
The easiest way to connect MFP HP 415 To connect to the network, use WPS (Wi-Fi Protected Setup) technology. This method allows you to transfer network information from the router to the printer by simply pressing buttons, avoiding the need to manually enter a complex password. To do this, your router must have a physical WPS button or a software equivalent in the web interface.
The process is as follows: On the printer control panel, press and hold the button Wireless communication (antenna icon) for 3 seconds until the indicator light starts flashing blue. Then, within 2 minutes, press the WPS button on your router. The devices will automatically find each other and exchange encryption keys.
A successful connection is confirmed by a steady blue wireless indicator on the device's panel. If the indicator continues to flash, pairing was unsuccessful. In this case, repeat the procedure, ensuring the printer is within range of a strong signal.
Setup via the HP Smart app on your smartphone
The most reliable and functional method is to use the official application. HP SmartIt's available for iOS and Android, as well as Windows and macOS. The app not only configures the network but also allows you to monitor ink levels, scan documents, and perform diagnostics.
To get started, open the app and tap "Add Printer" or the plus sign. The app will ask you to enable Bluetooth on your smartphone—this is necessary for initial device detection. Make sure your phone is connected to the same WiFi network to which you want to connect the printer.
Follow the on-screen instructions: the app will find the device and prompt you to transfer its network settings. You may be asked to manually enter the WiFi password during the setup process. Once the data transfer is successful, the printer will reboot the network module and appear in the list of available devices.
☑️ Setup Preparation Checklist
Troubleshooting Dual-Band Routers
A common problem when connecting HP DeskJet 4155 is a frequency conflict. Modern routers often combine the 2.4 GHz and 5 GHz bands under a single name (SSID). Older printer network modules may incorrectly process this signal, refusing to connect or constantly disconnecting.
To resolve this issue, access your router settings (usually at 192.168.0.1 or 192.168.1.1). Find the wireless section and try temporarily disabling band aggregation by giving the 2.4 GHz network a unique name. You can restore the names after connecting the printer, but the device may no longer see the network if the router switches it to 5 GHz.
An alternative solution is to create Guest network Only use the 2.4 GHz frequency. This will not only solve the compatibility issue but also increase the security of your main network by isolating the printer from personal computers and smartphones.
Why doesn't the printer see the 5 GHz network?
The network module in the HP 415 is based on a chip that supports 802.11 b/g/n standards only in the 2.4 GHz band. It is physically unable to receive 5 GHz signals, as this requires a different antenna and radio module.
Table of indicators and their meanings
Understanding LED indicators is key to quick diagnostics. The HP 415 control panel is minimalist, with most information conveyed through the color and blinking patterns of the LEDs. Below is a breakdown of the main statuses.
| Indicator | State | Meaning | Action |
|---|---|---|---|
| Wireless communication | It's blue | Connected to WiFi | No action required |
| Wireless communication | Flashing blue | Setup Mode / Search | Run the setup through the app |
| Wireless communication | Burns amber | Network error | Check your router password or signal |
| Attention | Flashing amber | Hardware error | Check the tray and cartridges |
| Nutrition | Flashing white | Power saving mode | Press any button to activate |
Please note that if the wireless indicator is amber, this almost always indicates an authentication issue or a weak signal. In this case, move the device closer to the router for initial setup.
Reset network settings to factory defaults
If you've changed your router, password, or network name, and the printer continues to attempt to connect to the old settings, you should perform a reset. This will return the network module to a state ready for a new configuration, deleting all saved profiles.
To perform a reset, press and hold the buttons on the control panel at the same time Wireless communication And Cancel (cross) for 3 seconds. The power button may flash. After this, the wireless indicator should start flashing blue, indicating setup mode has begun.
After the reset, the device will create its own temporary WiFi Direct network (e.g., HP-Setup-4155). You can connect to it directly from your smartphone, but for full functionality, you'll still need to redirect the device to your main home network via the app.
⚠️ Note: Resetting network settings does not affect fax settings (if supported) or calendar settings, but it does reset the IP address and WiFi security settings. You will need to re-enter your router password.
Network diagnostics and report
For a more in-depth diagnosis, you can view a connection report directly from the device. This will help you understand whether the router is seeing the printer and what signal strength it's receiving. The report contains technical information that's useful when contacting support.
To print a report, press and hold the button Wireless communication and the button Information (the "i" icon) simultaneously for 3 seconds. The printer will print a page with technical data, including the MAC address, IP address, and connection status.
If the report indicates that the IP address starts with 169.254.x.x, this means the printer hasn't received an address from the router's DHCP server. In this case, the problem lies either in the router settings (connection limit) or incompatibility of encryption protocols.
What to do if the IP address is not assigned?
Try manually changing the encryption type on your router from WPA3 to WPA2/WPA Mixed. Some older printer network cards don't support the latest WPA3 security protocols.
Frequently Asked Questions (FAQ)
Is it possible to connect HP 415 to a hidden network (SSID Hidden)?
Directly connecting to a hidden network using the standard setup procedure is often impossible, as the printer can't "see" the network to enter the password. It's recommended to temporarily make the network visible, connect the device, and then hide the SSID again. However, after enabling SSID hiding, the printer may lose connection, as it can't actively scan the air for hidden networks.
Does the HP DeskJet 4155 support USB cable connection?
Yes, this model supports wired connection via a USB Type-B interface (square connector). The cable is typically not included and must be purchased separately. When connecting a USB cable, the software will automatically prioritize the wired connection, disabling the WiFi module to save power unless hybrid operation is configured.
Why can't the HP Smart app find my printer?
The most common cause is that the devices are on different networks (for example, a phone on 4G/5G and a printer on WiFi) or Bluetooth is disabled on the smartphone. Also, make sure you've granted the app all necessary permissions, including access to the local network (especially relevant for iOS 14+ and Android 10+).
How do I change the name of a printer on a network?
You can change the hostname using the Embedded Web Server (EWS). To do this, enter the printer's IP address into the address bar of your computer's browser, go to the "Network" or "Settings" tab, find the "Device Name" field, and make your changes. After saving, the page will reload with the new name.
Does HP 415 work without cartridges?
No, the device will not perform any operations, including network scanning or WiFi setup, unless both the black and color cartridges are installed or empty. This is a design feature that protects the print head from drying out and being damaged.