Canon MF211 Manual page 157

Enter the network key using the numeric keys, select <Apply>, and press
Entering Text
WEP
9
Select <Yes>, and press
If an error message is displayed during setup
Press , check whether the network key is correct, and return to step 5.
10
Check that the Wi-Fi indicator is blinking on the operation panel.
The Wi-Fi indicator blinks when a wireless router is detected.
When the setup is completed, the screen below is displayed, and approximately 2 seconds later, the Wi-Fi indicator lights up.
Wait approximately 2 minutes until the IP address settings of the machine are completed.
Signal strength
When more than one wireless router is available for connection, the machine connects to the device with the strongest signal.
Signal strength is measured using RSSI (Received Signal Strength Indication).
Reducing power consumption
You can set the machine to enter <Power Save Mode> based on signals emitted from the wireless router.
If the IP address of the machine has changed
In a DHCP environment, the IP address of the machine may be changed automatically. If this happens, the connection is
maintained as long as the machine and the computer belong to the same subnet.
LINKS
Connecting to a Wireless LAN
WPA-PSK or WPA2-PSK
.
.
Power Save Mode