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E-1
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Make sure that the Ethernet cable is connected to the printer, a hub, or other network devices.
Make sure that the hub or other network devices are turned on.
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E-2
E-3
E-7
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Make sure that the access point is turned on.
Check that the computer or other devices are connected correctly to the access point.
Place the printer close to the access point. Remove any obstacles between them.
If you have entered the SSID manually, check if it is correct. You can check the SSID from Network Status on the network connection report.
To establish a network using push button setup, check that the access point supports WPS. If it does not support WPS, you cannot establish a network using push button setup.
Check that only ASCII characters (alphanumeric characters and symbols) are used for the SSID. The printer cannot display an SSID which contains any characters other than ASCII characters.
Check the SSID and password before connecting to the access point. If you are using an access point with its default settings, the SSID and password are on the label. If you do not know the SSID and password, contact the person who set up the access point, or see the documentation provided with the access point.
When you want to connect to the SSID generated by using the tethering function of a smart device, check the SSID and password on the documentation provided with the smart device.
If the Wi-Fi connection is suddenly disconnected, check the following. If any of these are applicable, reset the network settings using the software disc supplied or using the software downloaded from the website.
Another Wi-Fi device was added to the network using push button setup.
The Wi-Fi network was set up using any method other than push button setup.
株式会社バッファロー製のアクセスポイントで、プッシュボタンで設定（AOSS）できるタイプを使っているか
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E-5
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Make sure the access point’s security type is set to one of the following. If it is not, change the security type on the access point, and then reset the printer’s network settings.
WEP-64 bit (40 bit)
WEP-128 bit (104 bit)
WPA PSK (TKIP/AES)*
WPA2 PSK (TKIP/AES)*
WPA (TKIP/AES)
WPA2 (TKIP/AES)
*: WPA PSK is also known as WPA Personal. WPA2 PSK is also known as WPA2 Personal.
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E-6
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Check if the MAC address filtering is disabled. If it is enabled, register the printer’s MAC address so that it is not filtered. See the documentation provided with the access point for details. You can check the printer’s MAC address from the Network Status on the network connection report.
If the access point’s shared authentication is enabled on the WEP security method, make sure the authentication key and index are correct.
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E-8
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Enable DHCP on the access point when the printer’s Obtain IP Address is set to Auto.
If the printer’s Obtain IP Address is set to Manual, the IP address you manually set is out of range (for example: 0.0.0.0) and it is disabled. Set a valid IP address from printer’s control panel or Web Config.
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E-9
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Check the following.
Devices are turned on.
You can access the Internet and other computers or network devices on the same network from the devices you want to connect to the printer.
If it still does not work after checking the above, reset the network settings using the installer. You can run it using the software disc supplied or using the software downloaded from the website.
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E-10
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Check the following.
Other devices on the network are turned on.
Network addresses (IP address, subnet mask, and default gateway) are correct if you have set the printer’s Obtain IP Address to Manual.
Reset the network address if these are incorrect. You can check the IP address, subnet mask, and default gateway from the Network Status on the network connection report.
When DHCP is enabled, change the printer’s Obtain IP Address to Auto. If you want to set the IP address manually, check the access point’s IP address, and then select Manual on the network settings screen from printer’s control panel or Web Config. Set the subnet mask to [255.255.255.0].
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E-11
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Check the following.
The default gateway address is correct when you set the printer’s TCP/IP Setup to Manual.
The device that is set as the default gateway is turned on.
Set the correct default gateway address. You can check the default gateway address from the network status screen on the printer’s control panel, Web Config, by printing a network connection report, or network status sheet.
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E-12
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Check the following.
Other devices on the network are turned on.
The network addresses (IP address, subnet mask, and default gateway) are correct if you are entering them manually.
The network addresses for other devices (subnet mask and default gateway) are the same.
The IP address does not conflict with other devices.
If it still does not work after checking the above, try the following.
Make network settings on the computer that is on the same network as the printer using the software disc supplied or using the software downloaded from the website.
You can register several passwords on an access point that uses the WEP security type. If several passwords are registered, check if the first registered password is set on the printer.
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E-13
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Check the following.
Network devices such as an access point, hub, and router are turned on.
The TCP/IP Setup for network devices has not been set up manually. (If the printer’s TCP/IP Setup is set automatically while the TCP/IP Setup for other network devices is performed manually, the printer’s network may differ from the network for other devices.)
If it still does not work after checking the above, try the following.
Make network settings on the computer that is on the same network as the printer using the software disc supplied or using the software downloaded from the website.
You can register several passwords on an access point that uses the WEP security type. If several passwords are registered, check if the first registered password is set on the printer.
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