Linksys RE7310 User Manual page 8

extended Wi-Fi network shares the same network name and password. Connected devices
will select the main or extended network as you move around your house.
If you do not have a router with seamless roaming, select an extended network on your
device's Wi-Fi manager. Extended networks are identified by "_Ext" added to the end of
your main network names. Passwords will be the same as those for your main networks.
Your range extender is now set up. Enjoy your extended Wi-Fi coverage.
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