Epson WorkForce Enterprise WF-C21000 Series User Manual page 233

Solving Problems
Suddenly the Printer Cannot Print over a Network Connection
The problem could be one of the following issues.
The network environment has been changed.
Solutions
When you have changed the network environment, such as the wireless router or provider, try making
network settings for the printer again.
Connect the computer or smart device to the same SSID as the printer.
"Re-setting the Network Connection" on page 303
&
Something is wrong with the network devices for Wi-Fi connection.
Solutions
Turn off the devices you want to connect to the network. Wait for about 10 seconds, and then turn on the
devices in the following order; wireless router, computer or smart device, and then printer. Move the
printer and computer or smart device closer to the wireless router to help with radio wave
communication, and then try to make network settings again.
The printer is not connected to the network.
Solutions
Select Settings > General Settings > Network Settings > Connection Check, and then print the network
connection report. If the report shows that the network connection failed, check the network connection
report and then follow the printed solutions.
"Printing a Network Connection Report" on page 321
&
There is a problem with the network settings on the computer.
Solutions
Try accessing any website from your computer to make sure that your computer's network settings are
correct. If you cannot access any website, there is a problem on the computer.
Check the network connection of the computer. See the documentation provided with the computer for
details.
Cannot Print from Smart Device
Make sure the smart device and the printer are connected correctly.
The cause and solution to the problem differ depending on whether or not they are connected.
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The Printer Does Not Work as Expected
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Cannot Print
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