> For the complete documentation index, see [llms.txt](https://docs.verifone.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.verifone.com/support-nordics/p400-two-piece-sa/how-tos/how-to-assign-a-static-ip-address.md).

# How to Assign a Static IP Address

Set a fixed (static) IP address on your P400 Two-Piece operator unit.

{% hint style="info" %}
**Use this when** your network needs your terminal to use a fixed (static) IP address, instead of one it picks up automatically.
{% endhint %}

You only need to set a static IP address on the **operator unit (V400c)** — the unit at the till.

{% hint style="success" %}
**Why use a static IP address?** A static IP address is a good solution if your two units often lose connection with each other and you find yourself re-entering the operator unit's IP address on the customer unit.

Without a static IP address, your router can give the terminal a new IP address — for example, after a power cut or when the router's IP address lease runs out. A static IP address stays the same, so your units stay connected.
{% endhint %}

## Before you start

{% hint style="warning" %}
You'll need these details for your network:

* **IP address** — the fixed address you want the terminal to use.
* **Subnet mask**
* **Gateway IP address**

The subnet mask and gateway are usually the **same as your till computer's**. If you're not sure, ask your IT or network provider.
{% endhint %}

{% hint style="info" %}
**How to enter addresses:** each part of the address must have **3 digits**, and you don't type the dots. For example, **192.168.1.10** is entered as **192 168 001 010**.
{% endhint %}

## Set a static IP address

{% stepper %}
{% step %}

### Open the communication settings

1. On the operator unit, press **#**. No password is needed.
2. Select **Administration > Settings > Communication**.
   {% endstep %}

{% step %}

### Turn off automatic IP

1. Tap **LAN**, then **Configuration**, then **IPv4**.
2. Tap **DHCP** and select **No**.
   {% endstep %}

{% step %}

### Enter your network details

Tap each option below, enter the address, then press the **green button**:

1. **IP Address** — your terminal's fixed IP address.
2. **Subnet Mask**
3. **Gateway IP Address**
4. **DNS 1** — enter the **same address as your Gateway**.
5. **DNS 2** — enter `001.001.001.001`.
   {% endstep %}

{% step %}

### Save the settings

1. Tap the **"<"** icon in the top-left corner (next to "IPv4").
2. Tap the **Save** icon in the bottom-right corner, then tap **OK**.
3. When asked **"Apply settings on interface?"**, tap **Yes**, then tap **OK**.
4. Press the **red button** until you're back on the start screen.
   {% endstep %}
   {% endstepper %}

{% hint style="success" %}
**Check it worked:** see [How to Check the Network Information](/support-nordics/p400-two-piece-sa/how-tos/how-to-check-the-network-information.md). The terminal should show your new IP address and **UP**.
{% endhint %}

If you need help setting a static IP address, <mark style="color:red;">contact Verifone Support</mark>.

<details>

<summary>Keywords</summary>

Also called: static IP, fixed IP, assign IP address, set IP address, manual IP, DHCP off, units keep disconnecting, IP address changed. Search terms: static IP, fixed IP, IP address, subnet mask, gateway, DNS, DHCP, IPv4, operator unit, lose connection, power cut, IP lease.

</details>


---

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