For the maximum number of connections, see the manual of the wireless LAN router or contact the
manufacturer.
Could not connect using the wireless LAN.
An error occurred, preventing the machine from connecting to the wireless LAN.
Restart the Machine, and Configure the Wireless LAN Connection Again.
Connecting to a Wireless LAN(P. 38)
Are the Machine and Wireless LAN Router (Access Point) Located Appropriately?
●
The machine and wireless LAN router should be installed in a location without walls or other obstructions
between the devices and within range of 50 m.
●
Do not install near a microwave oven, digital cordless telephone, or other device that generates radio
waves.
Check the Security Settings of the Wireless LAN Router.
For details, see the manual of the wireless LAN router or contact the manufacturer.
Could not connect using WPS.
An error occurred, preventing the machine from establishing a WPS connection.
Wait a Moment, and Configure the Settings Again.
If you still cannot establish a WPS connection, check whether the wireless LAN router (access point) supports
WPS.
If It Supports WPS
Check that the machine and wireless LAN router are located appropriately.
●
The machine and wireless LAN router should be installed in a location without walls or other
obstructions between the devices and within range of 50 m.
●
Do not install near a microwave oven, digital cordless telephone, or other device that generates radio
waves.
If It Does Not Support WPS
Connect using a different connection type. Connecting to a Wireless LAN(P. 38)
Could not detect any connections from wireless devices.
An error occurred, preventing the machine from detecting mobile devices.
Did You Connect Within the Fixed Time?
Connect the mobile device to the machine within five minutes of the SSID and network key being displayed.
Troubleshooting
329
Summary of Contents for imageCLASS LBP121dn
Page 1: ...imageCLASS LBP122dw LBP121dn User s Guide USRMA 7917 00 2023 02 en Copyright CANON INC 2023 ...
Page 7: ...Notice 358 Trademarks and Copyrights 359 Third party Software 361 VI ...
Page 47: ... Shared Key Encryption for WPA WPA2 TKIP AES CCMP IEEE 802 1X Authentication Setting Up 40 ...
Page 65: ... The settings are applied Setting Up 58 ...
Page 100: ...Paper with logo in landscape orientation Basic Operations 93 ...
Page 105: ... The custom paper is registered Basic Operations 98 ...
Page 138: ...6 Log out from Remote UI Linking with Mobile Devices 131 ...
Page 159: ...8 Log out from Remote UI Security 152 ...
Page 207: ... Off On Settings Menu Items 200 ...
Page 250: ... Off On Settings Menu Items 243 ...
Page 284: ... When you select On the printing speed may decrease Troubleshooting 277 ...
Page 353: ...Manual Display Settings 95LW 08H Appendix 346 ...