How to Recover Pre-shared key

Welcome to the forums. The key from the Fortigate is hashed. No way to retrieve it (that I know of). 2 options come to mind: 1) If you need to move it to another FGT unit, you could copy the config section. That hash will be good on the next unit. 2) Just enter another. This is a pain if you have many users...

It would be nice if fortinet had a equivalent to cisco' s " more system:running-config" to look at the encrypted PSK. Helps alot when you forget the key and installing a temporary non-fortigate model.