A modern retail outlet requires high mobility and independence from wired communications, which makes wireless connection cash register equipment is critical. Model Atol 91F is one of the most popular Android solutions on the market, allowing you to print receipts anywhere there's a signal. However, initial network setup can be challenging for users unfamiliar with the device's operating system.
Before you begin configuration, you need to ensure your equipment is fully operational. This means a working battery, at least 30% charged, and an activated SIM card or accessible access point. Wi-FiErrors at this stage often result in the cash register drivers being unable to find the device on the local network, which halts the registration process with the Federal Tax Service or the start of sales.
In this article, we'll take a detailed look at the steps that will allow you to quickly and easily set up a network connection. We'll cover both standard setup methods via the terminal menu itself, as well as working with network parameters via a computer, which is especially important for corporate networks with a complex structure.
Preparing to set up a network connection
The first step should always be a visual inspection of the equipment and preparing your credentials. You'll need to know the exact name of your network (SSID) and its password. If you're using a corporate router, you may also need information about the encryption type, although 99% of the time, standard encryption is used. WPA2-PSK.
Turn on the cash register by pressing and holding the side power button until the logo appears. After the Android operating system boots, ensure the date and time are set correctly, as this affects the operation of security protocols and SSL certificates when exchanging data with the fiscal data operator (FDO). An incorrect time may block the connection to secure networks.
⚠️ Attention: If you're setting up your cash register for the first time, make sure the device has a SIM card with an active data plan installed, even if you plan to use WiFi. This will reserve the data channel in case the primary connection fails.
To successfully integrate into the network, you will need the following information:
- 📡 Network name (SSID) is case-sensitive.
- 🔑 Access password - check that there are no extra spaces.
- 📍 Security type - usually WPA/WPA2 Personal.
- 🏢 Gateway IP address - if the network is static.
It's also a good idea to prepare the computer in advance, which will be used for installing the drivers and performing the initial setup of the fiscal storage device. Make sure all necessary Windows updates are installed on your PC, as older versions of the OS may not work correctly with new communication protocols. Atol 91F.
Setting up WiFi via the Android menu at the checkout
The easiest and fastest way to connect your device to the internet is to use the operating system's built-in interface. To do this, find the "Settings" icon (usually a gear) on the home screen or swipe down from the top to open the quick action panel.
In the menu that opens, select "Wi-Fi" and toggle the switch to the on position. The device will begin scanning the surrounding area. Find your router's name in the list of available networks. If the network is hidden, select "Add network" and enter the SSID manually.
Clicking on the network name will open a password entry window. Be extremely careful when entering the characters, especially if the password contains special characters or capital letters. Once entered, click "Connect." The connection status will change to "Connected," and a signal strength icon will appear next to the network name.
Sometimes the system may request additional settings, such as a proxy server. For home and standard office environments, these fields should be left blank or selected "None." If the connection is successful, a corresponding icon will appear at the top of the screen.
Registering a cash register in the cash register driver
Once the terminal has received an IP address from the router, you need to notify the computer about it. Open the KKT Driver (version 4 or 5) on your PC. Go to the properties of the connected device. In the Connection Type field, select IP connection or "Ethernet", depending on the software version.
In the "IP Address" field, enter the address assigned to the cash register. You can find it in two ways: either by looking in the WiFi settings on the cash register itself (under "About Device" or "Network"), or by finding the device in your router's client list. By default Atol 91F often receives an address via DHCP.
The communication port is usually standard - 7777If you changed it in the terminal settings (via the "KKT Settings" app or the testing utility), enter the current value. Click the "Connection Test" button. If everything is configured correctly, the driver will display the firmware version and the status "Connection with KKT established."
☑️ Checking connection with cash register
It's important to note that the computer and cash register must be on the same subnet. This means the first three digits of their IP addresses must match (e.g., 192.168).1.X). If the computer is connected to one network and the cash register to another (guest WiFi), the connection will not be established.
Setting up a static IP address
In retail environments, dynamic IP address changes (DHCP) often disrupt the connection between the cashier's computer and the fiscal register. To avoid constant driver reconfiguration, it is recommended to assign a driver to the cash register. static IP.
To do this, in the WiFi menu on your Android device, tap your network name (or the gear icon next to it) after successfully connecting. Find "IP Settings" and switch the mode from "DHCP" to "Static."
In the fields that open, you must enter the data manually:
- 📍 IP address: Select a free address in your network range (e.g. 192.168.1.150).
- 🚪 Gateway: The IP address of your router (usually 192.168.1.1).
- 🌐 Network mask: standard 255.255.255.0.
- 🏢 DNS 1: You can specify a gateway or public DNS (8.8.8.8).
⚠️ Attention: Make sure the static IP address you select isn't in the range of addresses automatically assigned by the router (DHCP pool). Otherwise, an address conflict will occur, and one of the devices will lose network connectivity.
After saving the settings, the cash register will reconnect to the network with a new permanent address. Don't forget to update the IP address in the "Cash Register Driver" properties on your computer to match the new static value.
What to do if the router distributes addresses from 192.168.1.100 to 192.168.1.200?
In this case, select a static address outside this range, such as 192.168.1.50 or 192.168.1.220. This will ensure no conflicts.
Using the Connection Test utility
If standard methods fail to connect the cash register, or the cash register driver doesn't detect the device, use a specialized tool called "Test Connection." This utility is included with the Atol drivers and allows you to diagnose the problem at a low level.
Launch the program and go to the "Network" tab. Enter the cash register's address in the IP address field. Click the "Search" button. The utility will attempt to locate the device on the local network. If the search is successful, you will see the serial number and model of the cash register.
If the device is found but the connection is not established, check the ports. The standard port for the Atol protocol is 7777, for the record Classic (emulation) - 5555Make sure that Windows Firewall or antivirus software is not blocking outgoing connections to these ports.
| Parameter | Default value | Note |
|---|---|---|
| Port KKT | 7777 | Primary port for data exchange |
| Web interface port | 8080 | For access via browser |
| Time-out | 3000 ms | Response waiting time |
| Protocol | ATOL | Recommended protocol |
You can also use the "Connection Test" utility to reset the cash register's network settings to factory defaults if previous configurations have been corrupted. This will return the device to DHCP mode and clear saved WiFi passwords.
Solving common connection problems
One of the most common problems is frequency band incompatibility. Cash registers Atol 91F support the standard 802.11 b/g/n, which means it only works in the 2.4 GHz band. If your router only broadcasts on the 5 GHz band, the cash register simply won't detect the access point.
The second common cause of connection problems is a hidden SSID. If your network is hidden, automatic detection may fail. In this case, you'll need to manually add the network in Android settings, accurately specifying the name and encryption type. Also, check that MAC address filtering isn't enabled on your router.
On corporate networks with web-based authentication (Captive Portal), connections may be blocked. In this case, it's easier to create a guest network without authentication or use a separate router for the retail equipment. Antivirus software on your PC may also block ports required for the driver to function.
⚠️ Attention: Router interfaces and cash register firmware versions may vary. If the menu items described here don't match yours, please refer to the router manufacturer's documentation or update your cash register firmware to the latest version.
FAQ
How can I find the IP address of the Atol 91F cash register if it's already connected?
Go to the "Settings" menu at the cash register, select "About Phone" or "Status," then "Network" or "Wi-Fi." Your current IP address will be displayed there. You can also print a "Cash Register Status" report using the "Driver Test" app at the cash register itself.
The cash register does not see my WiFi network, although other devices connect.
Most likely, your router only operates in the 5 GHz band, and the cash register only supports 2.4 GHz. Enable mixed mode support (b/g/n) in your router settings or create a separate 2.4 GHz network.
Is it possible to connect the cash register to WiFi with login and password authentication (WPA2-Enterprise)?
This is difficult to achieve using standard Android tools at the checkout. For corporate networks with this type of security, it's recommended to use a separate router in client or repeater mode, which will receive the signal and distribute it to the checkout as a regular open or password-protected network.
What should I do if I get error 33 (No connection) when printing a receipt?
Error 33 means the computer driver can't reach the cash register. Check if the WiFi icon on the cash register is lit, if the IP addresses in the driver and network settings match, and try running a "Connection Test" in the cash register driver.
Are WiFi settings reset when the cash register is rebooted?
No, if you saved the network correctly and entered the password, the device will automatically connect to the known network every time you turn it on. A reset only occurs after a full factory reset (hard reset).