The Epson L355 series of MFPs has long established itself as reliable and cost-effective devices for home and small offices. However, owners often encounter difficulties during initial wireless setup, especially if the printer was previously connected to a different router or used only via USB. Modern routers use different encryption standards and frequency ranges, which sometimes creates conflicts with the printer's built-in network adapter.
In this article, we'll cover all the current methods for activating a Wi-Fi connection, from the quick WPS method to manual configuration using specialized software. You'll learn how to properly reset network settings if previous attempts have failed, and how to avoid common mistakes when entering your network password.
To successfully complete the procedure, you will need to know the password for your Wi-Fi network and have a device (smartphone or computer) that is already connected to the Internet. Signal stability The location of the printer installation plays a key role, so before starting the setup, make sure that the device is in a strong reception area.
Equipment preparation and compatibility testing
Before proceeding with software manipulations, it is necessary to ensure the physical readiness of the equipment. MFP Epson L355 Supports the IEEE 802.11 b/g/n standard, which means it operates in the 2.4 GHz band. If your router only broadcasts at 5 GHz or uses complex corporate security protocols, the printer may not see the network at all.
We recommend temporarily disabling the "Guest Network" feature and client isolation mode on your router, if they are enabled. Also, make sure MAC address filtering is not enabled on your device, as this could block connections from new devices. Print a network connection report to see the current status and MAC address of your printer.
⚠️ Attention: Make sure at least one black memory card is installed in the printer, even if you don't plan to print yet. Some models block network functions if the system is out of ink.
To diagnose the current status, print a connection report. To do this, press and hold the network button on the control panel for a few seconds until the indicator light starts flashing. The printer will automatically print a receipt with technical data.
- 📄 Network Report: Contains IP address, connection type and error status.
- 🔌 Indication: A flashing green indicator indicates that the network is being searched for, a lit indicator indicates a successful connection.
- 📶 Signal level: The report displays the number of divisions indicating the reception quality.
Quick connection via WPS technology
The easiest way to enable Wi-Fi on an Epson L355 is to use WPS (Wi-Fi Protected Setup). This method allows you to transfer security settings from your router to the printer without having to manually enter a long password. Most modern routers are equipped with a physical WPS button or have a software emulation of this feature in the web interface.
Press and hold the WPS button on your router for 2-3 seconds until the security light starts flashing. Immediately afterward, within 2 minutes, press and hold the Wi-Fi button on the Epson L355 printer control panel. The network and Wi-Fi Direct lights should begin flashing alternately, indicating the search and pairing process.
If everything is successful, the Wi-Fi indicator on the printer will turn green and remain solid. If the indicator blinks rapidly or goes out, the connection has failed. This may be due to a timeout or incompatible encryption methods.
Setting up via the Wi-Fi button on the control panel
If the WPS method doesn't work or your router doesn't support it, you can use a simplified setup procedure using the button on the device itself. This method requires you to know your network's exact name (SSID) and password in advance. The printer will search for available networks and allow you to select the desired one from the list, unless the network name is hidden.
Press and hold the Wi-Fi button on the printer for approximately 5-7 seconds until the Wi-Fi and Wi-Fi Direct lights begin flashing alternately. Then press the Color Copy button. The printer will begin searching for networks. If a network is found and open, the connection will be established automatically. If the network is password-protected, this method may require confirmation from a computer on the same network.
In some cases, especially with updated router firmware, the simple button doesn't allow you to enter a complex password. In these cases, you'll need to use a software-based method. Make sure your computer or smartphone is connected to the same Wi-Fi network to which you want to connect the printer.
Using EpsonNet Config for Windows
The most reliable and professional way to configure is to use the utility EpsonNet ConfigThis program allows you to view all Epson network devices on your local network and change their settings, even if their IP addresses are on different subnets. You can download the latest version from the official support website.
After installing and launching the program, find your Epson L355 device in the list. If the printer is connected via USB or is in setup mode (flashing lights), it will appear in the list. Select it and go to the menu. Configuration → TCP/IPHere you need to select the mode Infrastructure (Infrastructure), which involves connecting via a router.
In the window that opens, click the "Wizard" button. The program will prompt you to select your Wi-Fi network from the available list. After selecting the SSID, enter the network password. Please pay attention to the case, as passwords are case-sensitive. After applying the settings, the printer will reboot the network module.
☑️ Check before running EpsonNet Config
⚠️ Attention: If EpsonNet Config doesn't detect your printer, temporarily disable your antivirus software or Windows Firewall. They may be blocking the broadcast requests the program uses to find devices.
Reset network settings to factory defaults
Problems are often caused by conflicting old settings left over from a previous router. If the printer has "remembered" incorrect data or is attempting to connect to a non-existent network, it needs to be reset. This will return the network module to its original state, ready for new configuration.
To reset the printer, turn it on. Locate the Wi-Fi button and the information button (the "i" icon or a piece of paper) on the control panel. Press them simultaneously and hold for 5-10 seconds. The network lights should flash, and then the printer will print a network status report, confirming the reset.
After this procedure, the default network name (Direct-XXXX) may change, and the printer may stop responding to print requests until reconfigured. This is normal behavior. You can now rerun the setup wizard via the software or the WPS button.
Reset sequence:1. Turn on the printer.
2. Press Wi-Fi + Info (at the same time).
3. Hold for 5-10 seconds until the indicators flash.
4. Wait for the report to print.
Setup via the Epson iPrint mobile app
For smartphone and tablet users, Epson has developed an application Epson iPrint, which significantly simplifies the process. Available for Android and iOS, the app not only lets you print photos and documents but also configure the printer's network connection.
Launch the app on a smartphone connected to Wi-Fi. If the printer isn't already online, the app will prompt you to "Set up a network connection." Follow the on-screen instructions: select your router from the list and enter the password. Your smartphone will transmit this information to the printer.
This method is especially convenient if you don't have a computer with a disc drive or Ethernet port nearby. The app also lets you check the ink level in your CISS and the status of the nozzles, which is useful for preventing the print head from drying out after a long period of inactivity.
| Parameter | Description | Meaning for L355 |
|---|---|---|
| Wi-Fi standard | Wireless communication protocol | 802.11 b/g/n |
| Frequency | Operating range | 2.4 GHz |
| Security mode | Encryption type | WPA2-PSK (AES) |
| Ad-hoc mode | Direct connection | Not supported |
Why doesn't the printer see the 5 GHz network?
The Epson L355's Wi-Fi module doesn't physically support the 5 GHz frequency. If your router only broadcasts this frequency, the printer won't be able to connect. You'll need to enable a guest network or the primary 2.4 GHz channel in your router settings.
Diagnosing problems and troubleshooting errors
Even with the correct steps, problems may still occur. If the Wi-Fi indicator is flashing green and orange alternately, this indicates a connection error. Check if MAC address filtering is enabled on your router. In this case, even the correct password won't help until you add the printer's address to the router's whitelist.
Another common issue is an incorrect date and time on the router or printer, which affects WPA2 security certificates. Make sure the date and time are up-to-date on the PC or smartphone you're using for setup. Also, try temporarily changing the router's broadcast channel to 1, 6, or 11 to avoid interference from neighboring networks.
If nothing helps, try updating the printer firmware. This can be done through the program. Epson Software Updater, connecting the device via USB. New software versions often contain compatibility fixes for modern routers.
Why doesn't my Epson L355 see my Wi-Fi router?
Most likely, your router is operating in 5 GHz-only mode or is using a hidden network name (SSID). Client isolation mode may also be enabled. Check your router settings and ensure the 2.4 GHz network is active and the network name is visible to all devices.
How to find out the printer's IP address after connection?
Press and hold the information button (paper) on the printer's control panel for a few seconds. The printer will print a report showing the current IP address in the "IP Address" line. The address can also be viewed in the EpsonNet Config program.
Is it possible to connect the Epson L355 to Wi-Fi without a WPS button on the router?
Yes, this is possible. Use the EpsonNet Config program on your computer or the Epson iPrint app on your smartphone. These tools allow you to manually select a network and enter a password, completely eliminating the need for a physical WPS button.
What to do if the orange Wi-Fi light is on?
Orange usually indicates a connection error or low signal strength. Check your distance to the router, make sure you entered the correct password, and ensure the router isn't blocked by MAC address. Try rebooting the router.