Canon imageCLASS MF269dw II User Manual page 603

4
Connect the machine to the wireless LAN.
5
Install the driver to the computer that will use the machine.
When switching the machine from wired LAN connection to wireless LAN connection, any installed drivers
must be uninstalled and then reinstalled.
For details about uninstalling and installing drivers, see the driver manual at the online manual site.
https://oip.manual.canon/
Troubleshooting
Connecting to a Wireless LAN(P. 61)
594