Extend DHCP Lease Range to Enable More Client Connections
If your customers' browsers show a "page cannot be displayed message" when they connect to your hotspot, the reason may be that you are out of DHCP leases. Here's how you can increase the number of DHCP leases available to your customers.
Standard DD-WRT DHCP lease settings
Log into the local DD-WRT web interface on the Sputnik-Powered device. By default, login at http://192.168.180.1 with username root, password admin. Those values can be changed (and for security purposes, its important to change the password); in this example, the network is at 10.0.1.1.
Select "Setup/Basic Setup".
DD-WRT is factory set to allow 50 DHCP leases with 24-hour expiration. This is not enough for a typical hotspot.
Recommended DD-WRT DHCP lease settings
Change "Start IP Address" to 10, change "Maximum DHCP Users" to 240, and "Client Lease Time" to 300 minutes (5 hours). These values are approximate.
NOTE: do not allow DHCP lease addresses outside the range of 2-254. (Here the start address is 10, and 240 addresses are allowed. That means the highest possible value is 250, which is in range.) If you do, you may need to reset the device to restore functionality.
Click "Save" to apply and save your new settings. For good measure, reboot the router after saving settings to make sure they are applied.