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[title] Check your Firmware Version
[* blue] By this point, your computer should be connected and talking to your Duet. You may have received a number of messages from the Duet already; it's generally safe to ignore these for now. The Duet uses 'G-codes' to communicate and for all configuration. See the [[Gcode|G-code dictionary here]] for a description and full list.
[* blue] If you have a '''Duet 2 WifiWifi''' or '''Duet 3 Mini 5+ WiFi''', you may find you are getting a lot of messages like ''"WiFi reported error: no known networks found"''. The default configuration turns on the WiFi, but it is not finding a network to connect to. To stop the WiFi, send '''M552 S-1''' (see [[Gcode#Section_M552_Set_IP_address_enable_disable_network_interface|M552]] in the G-code dictionary).
[* blue] If you have a '''Duet 2 WifiWifi''' or '''Duet 3 Mini 5+ WiFi''', you may find you are getting a lot of messages like ''"WiFi reported error: no known networks found"''. The default configuration turns on the WiFi, but it is not finding a network to connect to. To stop the WiFi, send '''M552 S-1''' (see [[Gcode#Section_M552_Set_IP_address_enable_disable_network_interface|M552]] in the G-code dictionary).
[* red] To check the Duet's firmware version, send command '''M115''' to the Duet board (see [[Gcode#Section_M115_Get_Firmware_Version_and_Capabilities|M115]] in the G-code dictionary).
[* yellow] The Duet will respond with the firmware version being used.
[* blue] Mac OS and Linux users using 'screen': You will not see characters appear on the screen as you type. For this reason, it is easiest to copy and paste the commands to ensure correct syntax.
[* black] Copy '''M115''' and paste into terminal and then hit enter. You will see OK when a succesful command is received. Wait a few moments and the firmware version will be displayed.
[* icon_note] Once you know the firmware version your Duet is using, check for the latest version of the firmware in our [https://github.com/Duet3D/RepRapFirmware/releases|Github repository here]. Use the 'Latest release', not any 'pre-release', 'beta' or 'RC' version until you are familiar with Duet.
[* icon_note] If your Duet is using an old firmware version, we recommend upgrading. See [[Installing and Updating Firmware|Installing and Updating Firmware]] documentation.