> Source: [sk183682](https://support.checkpoint.com/results/sk/sk183682)

# sk183682 - "At least one subnet should be configured and enabled in order for the DHCP server to be enabled" error when enabling DHCP Server in a subnet assigned to a Bridge interface

| Property | Value |
|----------|-------|
| Solution ID | sk183682 |
| Date Created | 2025-07-20 |
| Last Modified | 2026-03-15 |
| Technical Level | General |
| Products | Security Gateway, Security Management Server, Multi-Domain Security Management Server |
| Versions | R82, R82, R82 |
| OS | Gaia |

## Symptoms

- 1. In Gaia Portal \> in the **Network Management** section \> on the **Network Interfaces** page, added a Bridge interface with an IPv4 address configured.
2. In the **Network Management** section \> on the **DHCP Server** page \> in the **DHCP Server Subnet Configuration** section, enabled DHCP only in the subnet of the Bridge interface.
3. In the **Network Management** section \> on the **DHCP Server** page \> in the **DHCP Server Configuration** section, selected **Enable DHCP Server** and clicked **Apply**.
4. This error appears:  
   `At least one subnet should be configured and enabled in order for the DHCP server to be enabled.`  
   `
   DHCP server, Interface selection error.`

## Solution

This problem was fixed. The fix is included starting from:

* [Check Point Quantum R82.10](https://support.checkpoint.com/results/sk/sk183506)

Check Point recommends to always upgrading to the most recent version.

If you choose not to upgrade, Check Point can supply a **Hotfix**.

[Contact Check Point Support](https://www.checkpoint.com/support-services/contact-support/) to get a Hotfix for this issue.

A Support Engineer will make sure the Hotfix is compatible with your environment before providing it.  
For faster resolution and verification, collect these files:

1. [CPinfo](https://support.checkpoint.com/results/sk/sk92739) file from the Management Server involved in the case.
2. [CPinfo](https://support.checkpoint.com/results/sk/sk92739) file from the Security Gateway / each Cluster Member / Security Group involved in the case.

**Hotfix installation instructions:**   
Refer to [sk168597 - How to install a Hotfix](https://support.checkpoint.com/results/sk/sk168597).

---

# Agent Instructions

This content is from the Check Point Support Center (https://support.checkpoint.com), the official knowledge base for Check Point cybersecurity products.

## Navigating This Knowledge Base

- **Complete index**: [llms.txt](https://support.checkpoint.com/llms.txt)
- **All SK articles**: [SecureKnowledge Sitemap](https://support.checkpoint.com/sitemaps/secureknowledge-sitemap-index.xml)
- **SK article URL pattern**: `https://support.checkpoint.com/results/sk/{skId}`
- **Markdown responses**: AI bot User-Agents automatically receive `text/markdown` content