Motorola WR850GP - Manual (Page 103)

Section 3 Configuration
3-70 WR850
Step 6: On the Wireless Network Properties tab, enter the authentication and encryption
methods enabled in your WR850 under Network Authentication and Data
Encryption
and, in the case of WPA-PSK or WPA2-PSK, enter the WPA Pass
Phrase as the Network Key. When done, click OK.