> ## Documentation Index > Fetch the complete documentation index at: https://nayax-44d6e37b-docs-marshall-faq-redistribution.mintlify.site/llms.txt > Use this file to discover all available pages before exploring further. # Device Activation & Communication > Activate a VPOS Media device, read its details, and set up Wi-Fi, Ethernet, and static IP Once the device is mounted and wired, it still needs to be activated and put on a network. Activation, the device's own identifiers, and its network settings all come from the device screen rather than from Nayax Core. ## Activate a VPOS Media Device Activation runs from the device screen and a landing page, and it takes an email address you can receive a verification code at. Activation is available on VPOS Media 5 only. VPOS Media 4S does not support it yet, so the steps below do not apply to that model. Scan the QR code shown on the device screen with your phone's camera. QR code displayed on the VPOS Media screen during activation The QR code opens a landing page. Enter the requested details and submit the form. Activation landing page form for a VPOS Media device A verification code arrives by email. Enter it on the landing page to finish activating the device. ## Find the Device's Serial Number and IP The device reports its own identifiers and network state from a hidden menu, so you do not need Nayax Core to read them. Tap the top-left corner of the screen repeatedly until the menu appears. Hidden menu on the VPOS Media screen Select **Device Info**. The screen shows the device's serial number along with its cellular and Ethernet communication details. Device Info screen showing serial number, eSIM, and network details In the example above the device has an eSIM, which every VPOS Media 4S has, and it is also connected to Wi-Fi, so the screen shows the network and the device's IP address. To go back to the idle screen and run transactions, select the arrow at the top left, then select the Payment APP screen. ## Configure Wi-Fi, Ethernet, and Static IP You reach the device's network settings from the same hidden menu. A static IP is required for the machine. When data comes back to the machine it passes through a firewall, and without a fixed address the firewall has no way to route it. VPOS Media devices support either DHCP or a static IP. DHCP is the default, and you change it from the device menu. Tap the top-left corner of the screen repeatedly until the menu appears, then select **Technician Menu** and enter the code. The default code is `123123`. Technician Menu option on the VPOS Media screen Scroll down to the **Communication** section. Communication section in the VPOS Media Technician Menu Open **Wifi** or **LAN**, depending on how the device connects. Wifi and LAN options under the Communication section From there, open the network you want and edit its settings. Under **Advanced**, the **IP settings** field is set to `DHCP` by default and can be changed to `Static`. ### Configure Wi-Fi Select the gears icon next to the relevant network. Gears icon next to a Wi-Fi network on the VPOS Media screen Select **Advanced**. Advanced option in the Wi-Fi network settings Scroll down to **IP settings** and fill in the IP details. IP settings field in the advanced Wi-Fi network settings ### Configure Ethernet The steps differ between the two VPOS Media models. On **VPOS Media 4S**, select the **Ethernet** option directly. The device prompts you to enable the Ethernet connection and edit its settings. Ethernet option on the VPOS Media 4S screen Open **Setting Ethernet** to enable the static settings, then fill in the details. Setting Ethernet screen with the static settings option on VPOS Media 4S On **VPOS Media 5**, tap the back arrow at the top left of the Wi-Fi settings screen to return to the device's system settings. Back arrow at the top left of the VPOS Media 5 Wi-Fi settings screen Tap **Network & Internet**. Network and Internet option in the VPOS Media 5 system settings Tap **Ethernet**. Ethernet option under Network and Internet on VPOS Media 5 Turn Ethernet on with the toggle, then tap the **Ethernet** row again to open **Ethernet Settings**. Ethernet toggle switched on in the VPOS Media 5 settings In **Ethernet Settings**, select **Static** and fill in the details. Static option selected in the VPOS Media 5 Ethernet Settings ## Use Ethernet for Both the Peripheral and the Servers The supported Ethernet setup is a single connection that carries traffic to the Marshall peripheral and to the Nayax servers at the same time. Providing access to the outside world in parallel with the peripheral is the router's job. Communicating with the peripheral over Ethernet while communicating with the servers over eSIM is not supported. That split is technically unnatural for Android and Nayax does not currently support it. ## Keep Cellular as a Fallback Even when a machine is planned around Ethernet, leave the SIM card installed and the antenna connected. Ethernet connections have caused intermittent problems for many customers, and with the SIM in place the VPOST or Onyx falls back to cellular when that happens. ## Next steps Configure the machine model, timeouts, and payment parameters in Nayax Core. See how the update runs on each device model and how long it takes.