e-05EcoTank ET-2850

Epson EcoTank ET-2850 E-05 Error: Network Failure

The Epson EcoTank ET-2850 E-05 error points to a failure in the device's wireless connection. It can occur if there is a router password change, signal interference, or if the device lost the assigned IP address. The standard solution is to reset network settings and reconnect through the printer panel.

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Common causes

  • 1Change of network name (SSID) or password.
  • 2Unstable Wi-Fi signal due to distance.
  • 3IP address conflict within the local network.
  • 4Internal Wi-Fi chip failure.

Solutions

Quick Diagnostics

If your printer does not appear in your PC's network list, the E-05 confirms a wireless communication error. Check if other wireless devices are connected first.

Step-by-step Solution

  1. Router: Restart your network gear and wait 2 minutes.
  2. Network menu: Go to 'Network Settings' > 'Wi-Fi' > 'Setup Wizard'.
  3. Authentication: Re-enter your password, ensuring correct casing.
  4. Verification: Print the network test page.

Maintenance and Prevention

Use static IP addresses if possible. Keep both the router and printer firmware updated to prevent security protocol mismatches.

When to Call a Technician

If the wireless card fails to detect any network, even while placed right next to the router, the internal module might be physically damaged.

Equipment Technical Data

  • Technology: Inkjet (EcoTank)
  • Compatible Consumable: 502 series (ink bottles)
  • Connectivity: USB, WiFi, WiFi Direct
  • Recommended Use: Home / Small Office
  • Official Drivers / firmware

Steps to follow

  1. 1

    Reboot router

    Power off and on your router to clear the network device table.

  2. 2

    Reconfigure Wi-Fi

    Go to the network menu and select 'Wi-Fi Setup'.

  3. 3

    Setup wizard

    Follow the wizard to locate your network and enter the password.

  4. 4

    Verification

    Print a network status page to confirm the connection.

Frequently asked questions

It is a wireless connection error; the printer cannot detect the network or authenticate.

It could be that the router changed channels or the signal is too weak.

The network error does not affect consumables; use original Epson 502 ink.

Keep the printer close to the router or use a Wi-Fi signal extender.