DIR-825 Quick Installation Guide
In order to connect your main device to the network of a 3G or LTE operator, 
from the  Work mode  list, select the  Mobile Internet  value. In this mode 
you can configure a 3G/LTE WAN connection, set your own settings for the 
wireless network in the 2.4GHz and 5GHz bands, and set your own password 
for access to the web-based interface of the device.
In order to connect your main device to a wireless ISP (WISP), from the Work 
mode list, select the WISP Repeater value. In this mode you can connect 
your device to another access point, configure a WAN connection, set your 
own settings for the wireless network in the 2.4GHz and 5GHz bands, and set 
your own password for access to the web-based interface of the device.
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