How to Set a Static Local IP Address on Mac for AV Production Networks

Master manual IPv4 configurations and DHCP reservations to guarantee zero-downtime device communication on your local area network

Setting up a fixed local IP address ensures that your primary and backup conferencing computers can always find each other, even if the local network router restarts mid-event.
On macOS, you can achieve this in two ways: Manually configuring a Static IP on the Mac itself, or creating a DHCP Reservation on your network router. Here is how to do both.

Method 1: Setting a Manual Static IP on macOS

As shown in the image below, this is the quickest method if you do not have administrative access to the network's router or switch:

Step 1: Open Network Settings

1. Click the Apple Menu () in the top-left corner of your screen and select System Settings...
2. In the sidebar, click on Network.

Step 2: Select Your Network Interface

1. Click on the active network connection you are using for the event (e.g., Ethernet or Wi-Fi).
2. Click the Details... button next to your connected network status.

Step 3: Configure IPv4 Manually

1. In the pop-up window, click on the TCP/IP tab in the sidebar. Note the "IP address", "Subnet mask" and "Router" values
2. Next to Configure IPv4, change the dropdown menu from Using DHCP to Manually.

Step 4: Enter Your Network Details

You will need to input three crucial pieces of information:

• IP Address: Enter the specific IP you want this Mac to keep (e.g., 192.168.1.50).

  Note: Make sure this IP address is outside of your router's automatic DHCP pool to avoid an IP conflict with another device. You could just use the IP address that was already copied to your notepad above in Step 3. 

• Subnet Mask: For most standard AV local networks, this will be 255.255.255.0 or whatever you noted above in Step 3.

• Router: Enter the local gateway IP address of your router (typically 192.168.1.1 or 192.168.0.1 or what ever you had noted in Step 3 above).

Click OK and then Apply to save the configuration.

Method 2: Setting up a DHCP Reservation (Recommended)

Also known as a "Static DHCP" or "IP Reservation," this method is configured directly on your network router. It is the preferred method for professional AV technicians because it centralizes all IP management in one place.

Step 1: Find Your Mac's MAC (Hardware) Address

Your router needs to know your Mac's unique physical hardware ID to always assign it the same IP address.

1. Go to System Settings > Network and click Details... on your active connection.
2. Click on the Hardware tab in the sidebar.
3. Copy the MAC Address string (formatted like 00:1A:2B:3C:4D:5E).

Step 2: Log Into Your Router's Admin Panel

1. Open a web browser on your Mac.
2. Enter your router's gateway IP address into the URL bar (e.g., 192.168.1.1) and press Enter.
3. Log in using your network administrator credentials.

Step 3: Map the IP Reservation

1. Navigate to the network settings tab, usually labeled DHCP Server, LAN Setup, or IP Reservation.
2. Click Add New or Reserve IP.
3. Fill out the mapping fields:
   • Device Name: e.g., Backup-Captioning-Mac
   • MAC Address: Paste the hardware address you copied in Step 1.
   • IP Address: Assign the specific local IP address you want this machine to lock down permanently.
4. Save the settings and restart or reconnect your Mac to the network.

Pro-Tips for AV Network Management:
Avoid IP Conflicts: If you set a static IP manually using Method 1, ensure the IP address you choose isn't actively being assigned to someone's phone or tablet by the router.
Wired Over Wireless: For redundancy setups, always use a physical USB-C to Ethernet adapter. Wi-Fi signal drops can trick the application into initiating a failover sequence prematurely.