Airlink101 AR686W User Manual page 26

Type in 8 to 63 characters into Preshare Key box. Click Next.
WPA2-PSK (AES) is the most secured encryption mode for general users but some
older wireless adapters may not support it. Therefore, please make sure all wireless
devices on your network support this security type.
Verify the information you have configured. If everything is correct, click Apply
Step 10
Settings to save the settings and reboot router.
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