TP-Link AD7200, User Manual, Page: 112 / 118

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1 ) Sometimes you will be asked to type in a PIN number when you connect to
the wireless network for the first time. This PIN number is different from the
Wireless Password/Network Security Key, usually you can only find it on the
label of your router.
2 ) If you cannot find the PIN or PIN failed, you may choose Connecting using a
security key instead , and then type in the Wireless Password/Network Security
Key .
3 ) If it continues to show note of Network Security Key Mismatch , it is suggested
to confirm the wireless password of your wireless router.
Note: Wireless Password/Network Security Key is case sensitive.
• Windows unable to connect to XXXX / Can not join this network / Taking longer than
usual to connect to this network:
• Check the wireless signal strength of your network. If it is weak (1~3 bars),
please move the router closer and try again.
• Change the wireless Channel of the router to 1, 6 or 11 to reduce interference
from other networks.
• Re-install or update the driver for your wireless adapter of the computer.