User manual

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WPA/WPA2 Pre-Shared Key
In this mode, the router will accept both WPA and WPA2 wireless clients
WPA Shared Key: The key for network authentication. The input format is in character
style and key size should be in the range between 8 and 63 characters.
Group Key Renewal: The period of renewal time for changing the security key
between wireless client and Access Point (AP). This process is done automatically.