R320, showing recover.me after deployment.

[tommy_yap]

I configure 3x R320 individually via LAN onto my PC and set a static IP on each. After I deploy and plug into the office network the CTL is blinking meaning unable to find host. The SSID shown is recover.me-XXXX, i tried connecting to it but prompt me password. I tried entering the password I set previously but fail, i tried enter serial number also failed. 

I read a support mentioned about the 16-digit passpharse, how do i find this passpharse? The last resort is to reset it and do it again but i am afraid this might happen again.