To find 3D printer IP address, the fastest method is to check the printer's own screen menu, where the address is usually displayed under network settings. If your printer lacks a screen, scanning your router's device list is the next quickest way to locate the IP, a process similar to how you find server IP terraria for game hosting, and the same approach you would use to find the IP address of a brother printer without a display.
How to find a 3D printer IP address: 3 easy methods
You need the IP address to connect slicing software like Cura or a web interface like OctoPrint to your printer. The quickest route is often the printer's own display, followed by network scanning tools if that isn't available.
Method 1: Check the printer's built-in screen menu
Many 3D printers with a digital display show the IP address directly in the on-screen menu, typically under "Settings," "Network Settings," or "Wireless Settings."
- Navigate to the printer's main menu using the control knob or touchscreen.
- Look for a "Settings" or "Network" section.
- Select the network option to view the IP address.
For specific models: On Prusa printers, go to Settings -> Network -> IPv4 Address. On the Elegoo Centauri, tap the gear icon, then the Network tab; the IP is listed under your connected network. For Ultimaker S-line printers, navigate to Preferences -> Network.
Method 2: Scan your network with a mobile app
If you cannot use the printer's screen, a free network scanner app on your phone can identify all devices on your Wi-Fi. The same approach works for other hardware on your network, such as when you need to find switch IP address.
- Download a network scanner app like Fing (available for Android and iOS).
- Run a scan of your local Wi-Fi network.
- Look through the list of connected devices for your printer's manufacturer name or a recognizable hostname.
The app will display the IP address next to the device entry, which you can then enter into your slicing software or browser.
Method 3: Log into your router to see connected devices
Your router maintains a list of every device connected to your network, including your 3D printer. This method works for both wired and wireless connections.
- Open a web browser and type your router's IP address into the address bar (commonly
192.168.1.1or192.168.0.1). - Enter your router's username and password to log in.
- Look for a section labeled "DHCP Clients," "Device List," or "Connected Devices."
- Find your 3D printer in the list by its name, manufacturer, or MAC address.
Once located, the IP address will be listed alongside the device entry, allowing you to connect from your slicing software or browser.
Finding the IP address for OctoPrint setups
If you run OctoPrint on a Raspberry Pi, you can often access the web interface using the hostname http://octopi.local in your browser, provided your computer supports Bonjour. For a more direct method, install the "IpOnConnect" plugin on your OctoPrint instance. After a reboot, this plugin displays the IP address directly on the printer's screen.
Why your printer's IP address might change
By default, most 3D printers use DHCP to obtain a dynamic IP address from your router. This address can change after a printer reboot or network reconnection, potentially breaking your connection to software like Cura or OctoPrint. To prevent this, you can set a static IP address on the printer itself (for Prusa printers, use a prusa_printer_settings.ini file; for Ultimaker S-series, use a USB drive with an ultimaker_network.config file). Alternatively, create a DHCP reservation in your router's settings to ensure the printer always receives the same IP address.
