Chapter3 Handling Unable to Connect to the Network There is some problem with the wireless LAN network device(s) Turn off the power of all devices connected to the network. Wait about 10 seconds, then turn on the wireless router (access point), computer or smart device, and printer, in that order. Move the devices closer to the wireless router (access point) so that they can receive radio waves more easily, and reconfigure the settings. The devices and the wireless router are too far apart to receive a signal Move the computer or smart device and printer closer to the wireless router, and then turn the router back on.
You have replaced the wireless LAN router, but the connection settings have not been changed Reconfigure the settings to match the new router. The SSID connected to the computer or smart device is different from that of the printer If you are using multiple wireless LAN routers or one wireless LAN router that can use multiple SSIDs, you will not be able to connect if the SSID that your computer or smart device is connected to is different from the SSID that the printer is connected to. Connect your computer or smart device to the same SSID.
The privacy separator function of the wireless LAN router is enabled Many wireless LAN routers (access points) and mobile routers have a privacy separator function that blocks communication between devices. If you cannot communicate between the printer and your computer or smart device even though they are connected to the same SSID, disable the privacy separator function on your wireless router (access point). For details, refer to the manual of your wireless router (access point). The IP address has not been assigned correctly If the IP address is "169.254.XXX.XXX" and the subnet mask is "255.255.0.0", the IP address may not have been assigned correctly.
On the printer's operation panel, select [Settings] - [Network Settings] - [Advanced], and check the IP address and subnet mask assigned to the printer. Restart the wireless router or reconfigure the network settings of the printer. There is a problem with your computer's network settings Make sure you can browse the website from your computer. If you cannot, there is a problem with your computer's network settings. Check your computer's network connection. For more information, refer to your computer's manual. 324