Amped Wireless REB175P - ProSeries High Power AC1750 Wi-Fi Range Extender / Bridge - Manual (Page 23)

Basic Setup Wizard
Confirm that Range Extender Mode is the mode that you wish to
configure and Click
Next to begin.
Scan for a Source Network to Connect to Extend
Click
Scan to find available networks. Select the Source Network(s)
that you wish to repeat. If you have a dual band router/access
point, select BOTH the 2.4GHz and 5.0GHz network names.
Note: It is recommended that you select a Source Network with a
signal strength greater than 70% for the most reliable connection.
Poor signal connections may cause slow speeds or dropped
connections
.
Click
Next to continue.
Note: If you do not see your desired Source Network, move the
Range Extender closer to the router and scan again as it may be
out of range
.