There is a problem with the network settings on the computer or smart device.
Solutions
Try accessing any website from your computer or smart device to make sure that your device's network
settings are correct. If you cannot access any websites, there is a problem on the computer or smart
device.
Check the network connection for the computer or smart device. See the documentation provided with
the computer or smart device for details.
The printer has been connected by Ethernet using devices that support IEEE802.3az (Energy
Efficient Ethernet).
Solutions
When you connect the printer by Ethernet using devices that support IEEE802.3az (Energy Efficient
Ethernet), the following problems may occur depending on the hub or router that you are using.
❏
Connection becomes unstable, the printer is connected and disconnected again and again.
❏
Cannot connect to the printer.
❏
The communication speed becomes slow.
Follow the steps below to disable IEEE802.3az for the printer and then connect.
1.
Remove the Ethernet cable connected to the computer and the printer.
2.
When IEEE802.3az for the computer is enabled, disable it.
See the documentation provided with the computer for details.
3.
Connect the computer and the printer with an Ethernet cable directly.
4.
On the printer, print a network connection report.
“Checking the Printer's Network Connection Status (Network Connection Report)” on page 122
5.
Check the printer's IP address on the network connection report.
6.
On the computer, access Web Config.
7.
Select
Log in
and enter the administrator password.
Launch a Web browser, and then enter the printer's IP address.
“Application for Configuring Printer Operations (Web Config)” on page 210
8.
Select
Network Settings
>
Wired LAN
.
9.
Select
OFF
for
IEEE 802.3az
.
10. Click
Next
.
11. Click
OK
.
12. Remove the Ethernet cable connected to the computer and the printer.
13. If you disabled IEEE802.3az for the computer in step 2, enable it.
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The Printer Cannot Connect to the Network
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