You Have Intermittent Connection Problems - Linksys AC3000 User Manual

You have intermittent connection problems

Plug in the range extender midway between your router and the area without Wi-Fi. Be sure you
have at least 50% of your router's Wi-Fi signal at that point on the device you used for setup. If
you have two bars or lower, move closer to your router.
To check the signal strength for individual devices connected to the extended network, go to the
Status > Wireless Clients Table.
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