Support Printers All-In-Ones WorkForce Series Epson WorkForce Pro WF-4820

What does the message on my product's LCD screen mean?

  • See below.

    Network Connection Report Codes and Messages

    Check the error codes and messages on the network connection report to solve problems you may encounter with network connections. The tables here list solutions to problems based on the error codes and messages that may appear on the top of the report.

    1 Error code
    2 Message

    Note: Error codes and messages listed here may not all apply to your product.

    Error Codes and Messages

    Error code and message Solution
    E-1

    Confirm that the network cable is connected and network devices such as hub, router, or access point are turned on.

    Make sure your router, access point, and/or hub are turned on, and the network cable is securely connected to your device and to your product.

    If you are trying to set up Wi-Fi, remove the network cable and set up Wi-Fi again. Ethernet and Wi-Fi cannot be connected at the same time.

    E-2, E-3, or E-7

    No wireless network names (SSID) found. Confirm that the router/access point is turned on and the wireless network (SSID) is set up correctly. Contact your network administrator for assistance.

    No wireless network names (SSID) found. Confirm that the wireless network name (SSID) of the PC you wish to connect is set up correctly. Contact your network administrator for assistance.

    Entered security key/password does not match the one set for your router/access point. Confirm security key/password. Contact your network administrator for assistance.

    Check the following:
    • Make sure your router or access point is turned on, and is correctly connected to your computer or network device.
    • Turn off the router or access point, wait about 10 seconds, and turn it on again.
    • Move your product closer to your router or access point, and remove any obstacles between them. Also move your product away from devices such as wireless phones or microwaves.
    • Confirm that the SSID shown on the network connection report matches the label on your router or access point. Also make sure your SSID uses only ASCII characters and symbols, or your product cannot display the SSID correctly.
    • If you are trying to connect using the WPS push button method, make sure your router or access point supports it.
    • If you are using a network password, check the label on your router or access point to confirm that you are using the correct password, or check with your network administrator or router/access point documentation.
    • If you are connecting to a smart device that generates an SSID, check the device documentation for the SSID and password you should use.
    • If your wireless connection suddenly disconnects, and another smart device was added to the network using a WPS push button method or your network was set up using a non-WPS push button method, try downloading and installing your product software again.
    E-5

    Security mode (e.g. WEP, WPA) does not match the current setting of the printer. Confirm security mode. Contact your network administrator for assistance.

    If the security on your router or access point is not one of the following types, change the type of security on your router or access point and reset your product's network settings.

     

    • WEP-64 bit (40 bit)
    • WEP-128 bit (104 bit)
    • WPA PSK (TKIP/AES); also known as WPA Personal
    • WPA2 PSK (TKIP/AES); also known as WPA2 Personal
    • WPA (TKIP/AES)
    • WPA2 (TKIP/AES)
    • WPA3-SAE (AES)
    E-6

    MAC address of your printer may be filtered. Check whether your router/access point has restrictions such as MAC address filtering. See the documentation of the router/access point or contact your network administrator for assistance.

    If your router or access point has MAC address filtering enabled, register your product's MAC address so it is not filtered. Locate the MAC address on the network connection report and check your router or access point documentation for instructions.

    If your router or access point is using shared authentication with WEP security, confirm that you are using the correct authentication key and index.

    If your router or access point limits the number of connected devices, raise the connection limit. See your router or access point documentation for instructions.

    E-8

    Incorrect IP address is assigned to the printer. Confirm IP address setup of the network device (hub, router, or access point). Contact your network administrator for assistance.

    If your product's Obtain IP Address setting is set to Auto, enable DHCP on your router or access point. If it is set to Manual, the IP address may be out of range or on a different network segment; set a valid IP address using your product control panel or the Web Config utility.

    You can also try turning off your product and the router or access point, waiting about 10 seconds, and turning them on again.

    E-9

    Confirm the connection and network setup of the PC or other device. Connection using the EpsonNet Setup is available. Contact your network administrator for assistance.

    Make sure your computer or network device are turned on. Also make sure that you can access the Internet and other devices on the same network from the devices you are trying to connect to your product.

    If you still cannot connect to your product, turn off your router or access point, wait about 10 seconds, and turn it on again. Download and install your product software again to reset your network settings.

    E-10

    Confirm IP address, subnet mask, and default gateway setup. Connection using the EpsonNet Setup is available. Contact your network administrator for assistance.

    Make sure other devices on the network are turned on and do the following:

     

    • If your product's Obtain IP Address setting is set to Manual, check the IP address, subnet mask, and default gateway addresses on the network connection report to see if they are correct. If not, correct the settings.
    • If DHCP is enabled, set your product's Obtain IP Address setting to Auto. If you want to use the DHCP-assigned address as a static address, set the Obtain IP Address setting to Manual, enter the product's IP address as listed on the network connection report, and set the subnet mask to 255.255.255.0.

    If you still cannot connect to your product, turn off your router or access point, wait about 10 seconds, and turn it on again.

    E-11

    Setup is incomplete. Confirm default gateway setup. Connection using the EpsonNet Setup is available. Contact your network administrator for assistance.

    If you set your product's TCP/IP Setup setting to Manual, check that the default gateway address listed on the network connection report is correct. Also turn on the device that is set as the default gateway.
    E-12

    Confirm the following:

    -Entered security key/password is correct

    -Index of the security key/password is set to the first number

    -IP address, subnet mask, or default gateway setup is correct

    Contact your network administrator for assistance.

    Make sure other devices on the network are turned on and do the following:

     

    • Make sure the IP address, subnet mask, and default gateway addresses are correct, if you are entering them manually.
    • Confirm that the subnet mask and default gateway addresses for other devices are the same.
    • Make sure the IP address does not conflict with other devices.

    If you still cannot connect to your product, do the following:

    • Turn off your router or access point, wait about 10 seconds, and turn it on again.
    • Download and install your product software again to reset your network settings.
    • If your router or access point uses WEP security with several registered passwords, make sure that the first registered password is set on your product.
    E-13

    Confirm the following:

    -Entered security key/password is correct

    -Index of the security key/password is set to the first number

    -Connection and network setup of the PC or other device is correct

    Contact your network administrator for assistance.

    Make sure your router, access point, and/or hub are turned on. Also make sure the TCP/IP setup on your router, access point, and/or hub is not set manually; this may cause your product's network settings to differ from the manually set up devices.

    If you still cannot connect to your product, do the following:

    • Turn off your router or access point, wait about 10 seconds, and turn it on again.
    • Download and install your product software again to reset your network settings.
    • If your router or access point uses WEP security with several registered passwords, make sure that the first registered password is set on your product.

    Network Environment Messages

    Message Solution
    The Wi-Fi environment needs to be improved. Turn the wireless router off and then turn it on. If the connection does not improve, see the documentation for the wireless router. Move your product closer to your router or access point, and remove any obstacles between them. Then turn off your router or access point, wait about 10 seconds, and turn it back on again. If you still cannot connect to your product, check the documentation that came with your router or access point for solutions.
    *No more devices can be connected. Disconnect one of the connected devices if you want to add another one. You can connect up to 8 computers or other devices to your product using a Wi-Fi Direct (Simple AP) connection. If you want to add another device, disconnect an existing connected device first.
    The same SSID as Wi-Fi Direct exists in the environment. Change the Wi-Fi Direct SSID if you cannot connect a smart device to the printer. Change the Wi-Fi Direct SSID.
Published:  Aug 17, 2020 Was this helpful?​ Thank you for the feedback!
Was this helpful?​
Please tell us why this was not helpful.​