Canon TM-355 Online Manual page 629

After checking the wireless router setting, make sure the printer is not placed too far away from
the wireless router. The printer can be up 164 ft. (50 m) from the wireless router indoors if
unobstructed. Make sure the printer is close enough to the wireless router to be used.
Place the printer and wireless router where there are no obstacles between them. Wireless
communication between different rooms or floors is generally poor. Wireless communication
can be impeded by building materials containing metal or concrete. If the printer cannot
communicate with the computer over a Wi-Fi due to a wall, place the printer and the computer in
the same room.
In addition, if a device like a microwave oven that emits radio waves of the same frequency
bandwidth as a wireless router is nearby, it may cause interference. Place the wireless router as
far away from interference sources as possible.
• Checking the location of printer: •
Make sure that the printer is not placed behind an object. The printer may not be connected
when placed behind a wall or on a shelf. Try to place the printer in a location where there is no
obstacle.
For details, see the instruction manual supplied with the wireless router or contact the
manufacturer.
Solve the Problem, Using Wi-Fi Connection Assistant
Step 2
Diagnose and repair the network connections using Wi-Fi Connection Assistant.
Download Wi-Fi Connection Assistant from the below page, and install it on your computer.
Checking Printer Connection Status Using Wi-Fi Connection Assistant
If you can connect to the network, try to set up from the beginning.
Items to check for wired LAN
Check the basic items for wired LAN
Step 1
1. 1. Check the power and LAN Cable
When the printer cannot be found on the setup screen, using wired LAN connection setup, make sure
that all the network devices are connected with the router and the hub via LAN cables and that all the
devices are turned on.
If LAN cable is not connected:
Connect the router, hub, computer and printer via LAN cables.
Make sure the printer is turned on.
Make sure the printer is turned on, and make sure that the router and the hub are turned on.
If LAN cable is connected, and printer and network device are off:
Turn on printer or network device.
If LAN cable is connected, and printer and network device are on:
If they are on, turn them off and on again.
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