NOTE: This article applies to the SURFboard Wi-Fi Cable Modems (G18, G20, G34, G36, G54).
The DHCP lease time is the amount of time that the Gateway retains the IP address for the client devices in the network. If the Gateway does not see the client device in the network before the DHCP lease time expires, the IP address is released and available for other client devices to use. This document describes how to change the DHCP lease time in the Gateway.
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 Change the DHCP Lease Time
- Tap the My Network icon on the bottom of the screen.
 - Tap the Network Management box.
 - Tap the Network Settings + to expand the card, then tap the LAN Settings link.
 - Tap the LAN DHCP Lease Time link.
 - Enter the desired time in the Set Lease Time field below. By default it is set to 60 minutes.
 - Tap the box below the heading Select Time Unit to configure the least time in Minutes, Hours, Days, Weeks, and or Forever. In this example, Minutes is selected.
 - Tap the Save Changes button.
 - On the LAN DHCP Lease Time updated successfully pop-up box, tap the OK button.