Modern online cash registers such as Mercury 180F, require a constant and stable internet connection to accurately transmit fiscal data to the fiscal data operator (OFD). Unlike desktop computers, which are often connected via cable, retail equipment must be mobile and operate wherever needed. This is why Wi-Fi setup is one of the first steps after unpacking the device.
Configuring the wireless module may seem complicated at first glance. The cash register interface is logical, but it requires careful attention when entering passwords and selecting encryption parameters. Errors at this stage can result in receipts not being sent to the tax authorities, which can lead to fines for the entrepreneur.
In this article, we will examine in detail the steps to connect Mercury 180F to a wireless network. You'll learn about the nuances of choosing security protocols, how to enter characters from the keyboard, and connection diagnostic methods. We'll also cover common errors users encounter during initial equipment setup.
Preparing for connection and checking equipment
Before you begin software configuration, you must ensure that the device is physically ready for operation. Cash register Mercury 180F The device is equipped with a built-in wireless module that requires no additional adapters. However, for proper operation, it is important that the device be charged or connected to a power source, as power consumption may increase in setup mode.
Make sure you're within range of your wireless network's signal strength. If the router is located too far away or behind thick walls, the register may not see the network or the connection may be unstable. For initial setup, it's best to move closer to the access point.
⚠️ Important: Before starting setup, make sure you know the exact name of your network (SSID) and its password. The password is case-sensitive, so check your keyboard layout.
It's also worth checking whether your router has blocked new devices by MAC address. If your router has a strict filter in its security settings, you'll need to find out the cash register's MAC address in advance and whitelist it. This address is usually listed on a sticker underneath the device or in the "About" section.
Navigate the menu and access network settings
Cash register interface Mercury Built on the Android operating system, navigation is similar to using a smartphone. To get started, navigate to the main menu. This is usually done by pressing the house button or by holding down the power button, depending on the firmware version.
In the main menu, find the section responsible for system settings. It may be called "Settings," "System," or have a gear icon. Within this section, look for a subsection related to network connections. In modern software versions, this is often located in a separate group called "Network and Internet."
Select an item Wi-Fi or Wireless networksIf the module's status switch is in the "Off" position, turn it on. Once turned on, the device will begin scanning the surrounding area for available access points. A list of found networks will be displayed on the screen.
It's important to understand the difference between operating modes. The cash register can operate as a client (connecting to the router) or as an access point (sharing the internet). Client mode is required for receipt transfer. Make sure modem mode is not enabled in the settings unless it's needed for specific tasks.
Wireless network connection algorithm
Once the module is activated and the list of networks is displayed, find the name of your router in the list. If the network is hidden, select "Add network" or "Enter SSID manually" at the end of the list. Enter the network name using the on-screen keyboard. Be careful: characters are entered the same way as in SMS messages on older phones, or by switching languages.
After selecting a network, the system will prompt you to enter a password. This is a critical configuration step. Use the case shift key (usually indicated by an up arrow or the letters Aa) to switch between lowercase and uppercase letters. Numbers and special characters are often found on the second or third page of the virtual keyboard.
☑️ Check before connection
In the "Security Type" or "Encryption" field, in 99% of cases for home and office networks, you need to select WPA/WPA2-PersonalOlder protocols (WEP) are no longer used due to their poor security, and corporate protocols (WPA-Enterprise) require certificate configuration, which is rarely needed in retail.
After entering all the information, click "Connect" or "Save." The cash register will attempt to establish a connection. Success will be indicated by the appearance of the Wi-Fi icon in the top status bar and the word "Connected" under the network name. If an error message appears, double-check the password.
| Parameter | Recommended value | Note |
|---|---|---|
| SSID (Network Name) | The exact name of the router | Case sensitive |
| Security | WPA2-PSK / WPA3 | The most common standard |
| Password | Wi-Fi access key | Minimum 8 characters |
| Proxy | No | Not required for regular networks |
| IP settings | Static / DHCP | It is better to leave DHCP (automatic) |
Configuring IP and DNS settings
Default cash register Mercury 180F The router is configured to obtain an IP address automatically (DHCP). This means the router will automatically assign the device an address, subnet mask, and gateway. Most users don't need to change these settings. However, on corporate networks or if there are MAC address restrictions, manual registration may be required.
To access advanced settings, find "Advanced" or "IP Settings" in the Wi-Fi menu. Here you can switch the mode from "Dynamic" to "Static." You will need to enter an IP address that is in the same subnet as your router (for example, if the router 192.168.0.1, then you can give it to the cashier 192.168.0.50).
⚠️ Note: When manually setting an IP address, make sure the address you select is not already occupied by another device on the network, otherwise a conflict will occur and neither device will be able to operate properly.
DNS servers deserve special attention. If the cash register is connected to the network but isn't transmitting data to the fiscal data operator (OFD), try setting up a static DNS. This often solves issues with frozen fiscal document transmission. Google's servers can be used as an alternative DNS (8.8.8.8) or Yandex (77.88.8.8).
Changes take effect immediately after saving. If you change IP settings, the cash register may briefly disconnect and reconnect with the new settings. Check your internet connection by opening the built-in browser or running a connection test in the "About" section.
Connection diagnostics and data transfer
After successfully connecting to Wi-Fi, you need to ensure that the cash register not only "sees" the router but also has access to the global network. In the device menu, go to "Reports" or "Settings," then select "Diagnostics" or "Connection Test." Run the test.
The system will check several steps: connection to the router, DNS server availability, ping to the OFD server, and the ability to transmit a test packet. Successful completion of all steps is confirmed by green check marks or the message "Connected."
What should I do if there is a ping, but the receipts are not sent?
If the diagnostics show internet access but receipts aren't being fiscalized, the problem may be with the fiscal data operator (FDO) or the time settings. Check that the current time and date are set correctly on the cash register. A time desynchronization of more than 5 minutes blocks data transfer to the fiscal data operator (FN).
Channel stability is crucial. If the Wi-Fi signal is weak, packet data loss can lead to timeouts when sending receipts. In this case, consider using a USB Wi-Fi adapter with an external antenna if your cash register model supports external modules, or move the router closer to the checkout.
It's also worth checking whether your router's firewall is blocking the ports required for the fiscal storage device. Typically, the standard HTTPS port is used. 443Make sure your router's parental controls or antivirus settings don't block connections for unknown devices.
Solving typical problems and errors
One of the most common issues is an incorrect password. The cash register may take a long time to obtain an IP address, then return the error "Unable to connect." In this case, use the "Forget network" feature in the list of saved Wi-Fi connections, then try entering the password again.
Another common situation is when the cash register sees the network but fails to connect, returning an authorization error. This can occur if MAC address filtering is enabled on the router. In this case, you should either add the cash register's MAC address to the allowed MAC addresses on the router or temporarily disable filtering to test the connection.
If the cash register connects but the internet is down (the "!" symbol appears on the Wi-Fi icon), check the date and time settings. The security certificates used for secure connections to the fiscal data operator (FDO) have expiration dates. If the cash register displays a date such as 2015, the HTTPS connection will be disconnected.
⚠️ Note: The interface and menu layout may vary slightly depending on the firmware version installed. If you cannot find an option, please refer to the user manual for your specific firmware version.
In rare cases, a full reset of network settings can help. This will return all Wi-Fi settings to factory defaults but will not affect your tax data or inventory. After the reset, you will be required to re-enter your network password.
FAQ: Frequently Asked Questions
Is it possible to connect Mercury 180F to Wi-Fi with authorization via a web page (Captive Portal)?
The cash register can't use standard authentication methods on hotel or cafe websites, where you need to click "Accept" in your browser. For such networks, an additional router is required, which will handle authentication and distribute the internet connection to the cash register.
The cash register says "No connection to FN" even though Wi-Fi is connected. What's wrong?
This means the problem isn't with the Wi-Fi, but with the fiscal storage device itself or the driver. Check that the fiscal storage device is securely inserted, that the time is set correctly, and that the encryption keys haven't expired. Also, check the status in your fiscal data operator account.
How can I find the MAC address of a cash register to add it to a router?
The MAC address can be found in the About section -> General Information or on a sticker on the bottom of the device (labeled as Wi-Fi MAC). It has the format XX:XX:XX:XX:XX:XX.
Does Mercury 180F support 5GHz?
Most models of this cash register only operate in the 2.4 GHz band. If your router broadcasts networks with the same name on both frequencies, try separating them or forcibly switching the router to 2.4 GHz mode for compatibility.