Answer | The SBR-AC1900P also includes configurable options for the Local Area Network (LAN). Â The router's LAN IP Address and DHCP range can be configured and modified to suit the needs of the network. Â By default, the LAN IP address of the SBR-AC1900P is 192.168.0.1. Â This document contains the following sections:
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NOTE 1: If the LAN IP address is modified to be in a different subnet (e.g. 192.168.8.1), the SBR-AC1900P will automatically change the DHCP range to use addresses in that subnet.
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NOTE 2: The subnet mask of the SBR-AC1900P (255.255.255.0) cannot be modified.Â
Changing Router's IP Address
- Launch a web browser, such as Internet Explorer, Firefox, or Safari. Â Enter http://192.168.0.1 into the address box, and press the Enter key. Â The Login page will appear.
 - On the Login page, enter admin in the Username field.
 - Enter password in the Password field.
 - Click the Login button.  The Home page will appear.
 - Move the mouse-cursor over Basic on the main menu, and click the DHCP link on the sub-menu.  The Basic - DHCP page will appear.
 - On the Basic - DHCP page, enter the desired IP address in the LAN IP Address field for the LAN interface here.  In this example, 192.168.8.1 is used.Â
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NOTE: The LAN IP address used must be a private IP address (within one of the following ranges):
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10.0.x.x - 10.254.x.x
172.16.x.x - 172.31.x.x
192.168.1.x - 192.168.254.x (192.168.5.x and 192.168.51.x - 192.168.53.x are not available to use because it is reserved for Wi-Fi Guest network)
 - Click the Apply button in the LAN Network Configuration section.  The Progress bar page will appear.
 - Allow the Progress Bar to complete.  During this time the wireless connection will disconnect briefly and will reconnect. Â
 - Click the OK button to reconnect after the progress completed.
NOTE: If the LAN IP address is modified to be in a different subnet (e.g. 192.168.8.1), the SBR-AC1900PÂ will automatically change the DHCP range to use addresses in that subnet.
 - Launch a web browser, such as Internet Explorer, Firefox, or Safari.  Enter new address into the address box, and press the Enter key.  The Login page will appear.  In this example the new address is http://192.168.8.1.
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Configuring the DHCP settings
NOTE:Â Configuring the DHCP setting is optional.
- Launch a web browser, such as Internet Explorer, Firefox, or Safari.  Enter http://192.168.8.1 into the address box, and press the Enter key.  The Login page will appear.
 - On the Login page, enter admin in the Username field.
 - Enter password in the Password field.
 - Click the Login button.  The Home page will appear.
 - Move the mouse-cursor over Basic on the main menu, and click the DHCP link on the sub-menu.  The Basic - DHCP page will appear.
 - On the Basic - DHCP page, determine the best scenario for the Enabled DHCP Server option:
- If it is desired to have the SBR-AC1900P assign IP addresses to the client devices, leave this setting checked.
- If some devices are manually configured with IP addresses, but others are to receive an address from the SBR-AC1900P, leave this setting checked.
- If there is another device on the network that will be the DHCP server, uncheck this setting.
- If it is desired to manually configure each device with an IP address, uncheck this setting.
- Enter the first IP address to be used in the DHCP range in the Starting Local Address field or leave at default.
 - Enter the last IP address to be used in the DHCP range in the Max Number of Network Devices field or leave at default.
 - Enter the amount of seconds that a device will keep an IP address in the Lease Time field, if that device has received an IP address automatically from the SBR-AC1900P or leave at default.
 - Click the Apply button.  The Progress Bar page will appear.Â
 - Click the OK button to reconnect after the progress completed. The browser will refresh to the Basic - DHCP page.
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