TP-Link TL-WR720N User Manual page 104

5. The wireless stations cannot connect to the Router.
1) Make sure the "Wireless Router Radio" is enabled.
2) Make sure that the wireless stations' SSID accord with the Router's SSID.
3) Make sure the wireless stations have right KEY for encryption when the Router is
encrypted.
If the wireless connection is ready, but you can't access the Router, check the IP Address
4)
of your wireless stations.
TL-WR841N 300Mbps Wireless N Router
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