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The printHAT 2 and the Raspberry Pi can be connected to your home network via Wi-Fi or LAN. Upon start up if the Raspberry Pi can’t find a known network to connect to, it will generate its own hot-spot.

We recommend installing Bonjour to be able to easily find your OctoPrint instance without having to remember the IP address. On Linux and Mac OS the Bonjour software is already integrated. Windows users need to download and install it from here. More information can be found here.

The Bonjour networking protocol sends and receives network packets on UDP port 5353.The Bonjour installer will configure the Windows firewall appropriately during installation on supported systems, but sometimes a reboot of the Windows machine might be required.
If, after reboot, you can’t connect, most likely the firewall is still misconfigured for the Bonjour service and you have to fall back to use the IP in place of wrecklab.local.

Wifi Or Ethernet

If the wi-fi details have been entered in the wpa-supplicant (details) or the Raspberry Pi has been connected with an Ethernet cable, then it can be reached via http://wrecklab.local/


The Rasperry Pi creates its own hot-spot when it doesn’t find the wi-fi network configured or when there’s no configuration. The wireless network has the following characteristics:

SSID: wrecklab
Password: raspberry

Once you are connected to your network you can reach the printing software via http://wrecklab.local/ following the instructions for OctoPrint or Mainsail.