Context: 

To achieve optimal battery life (4-5 months) for Yale locks utilizing Wi-Fi, consider the following network setup recommendations:

Network Configuration Best Practices:

• Wi-Fi Settings: Ensure your network is set to 802.11b/g/n standard and broadcasting 2.4 ghz

• Avoid Mesh Networks: Mesh networks can significantly increase lock battery drain due to elevated network traffic as the lock frequently switches between access points.

• Proximity to Access Point (AP): Ensure the AP is close to the lock. A weak signal can lead to frequent network reconnections, which also deplete battery life.

• Unique SSID for APs: If using multiple access points (e.g., range extenders), configure each with a unique SSID. Identical SSIDs can cause the lock to "jump" between APs, similar to mesh networks, resulting in increased traffic and battery drain.

• Sufficient DHCP Leases: Verify that enough DHCP leases are available for all wireless devices on site.

• Firewall Configuration: If a firewall is in use, ensure it permits Yale lock connections.

• TCP/IP Timeout (if applicable): If possible, set the TCP/IP timeout to a maximum value or disable it for devices not in constant use.

• Minimize Radio Interference: Evaluate the site for any external radio interference that could disrupt communications.

Recommended Wi-Fi AP Brands:

Yale's data indicates that certain Wi-Fi AP brands correlate with longer lock battery life:

• Best Performing: Atheros, Sagemcom, Broadcom, ASUS, and Arcadyan.

• Good Performance: Arris and Xfinity.

• Avoid: OpenWrt APs and TP-Link mesh networks, as they have shown extreme battery drain with Yale locks.