Epson WorkForce Pro WF-C879RBAM User Manual page 249

Solving Problems
are connected to the same network, disable the privacy separator on the wireless router. See the manual
provided with the wireless router for details.
The IP address is incorrectly assigned.
Solutions
If the IP address assigned to the printer is 169.254.XXX.XXX, and the subnet mask is 255.255.0.0, the IP
address may not be assigned correctly.
Select Settings > General Settings > Network Settings > Advanced on the printer's control panel, and
then check the IP address and the subnet mask assigned to the printer.
Restart the wireless router or reset the network settings for the printer.
"Re-setting the Network Connection" on page 294
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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.
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.
"Printing a Network Connection Report" on page 311
5. Check the printer's IP address on the network connection report.
6. On the computer, access Web Config.
Launch a Web browser, and then enter the printer's IP address.
"Running Web Config on a Web Browser" on page 374
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The Printer Does Not Work as Expected
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Cannot Send or Receive Faxes
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