> For the complete documentation index, see [llms.txt](https://docs.rmhpos.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.rmhpos.com/installation/nbp_topics/nbp-network-securing-and-isolating/nbp-network-disable-dhcp.md).

# Disable DHCP

Disabling DHCP (Dynamic Host Configuration Protocol) prevents the router from automatically assigning IP addresses to devices that connect to the network. Disabling DHCP secures the network by preventing merchants or unknown third parties from plugging unauthorized computers or devices into the network.

{% hint style="info" %}
Disabling DHCP will disconnect all store computers and peripheral devices from the network. You will need to assign static IP addresses to these computer or device to reconnect them to the network.
{% endhint %}

The exact procedure for disabling DHCP will vary depending on the type of router you have installed in the store. Follow the configuration instructions provided by the manufacturer of the router that you are using.

{% hint style="success" %}
The HighSpeed.Tips (<https://highspeed.tips/>) web site provides links to demo web clients (emulators) for a variety of modems and network routers. You can use the emulators to familiarize yourself with the web client configuration options for devices from a range of hardware manufacturers.
{% endhint %}

The procedure below is provided as an example. It is based on Netgear's Genie router.

1. On the **Advanced** tab, expand **Setup**.
2. Click **LAN Setup**.
3. Clear the check mark beside **Use Router as DHCP Server**.

<div align="left"><img src="/files/n6wLW09ZTARseUy2RY9X" alt=""></div>

4. Click **Apply**.


---

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