Wifi backup?

I want to back up my wifi configurations to easily restore in a FW upgrade.
(I know you can do this for GRPS by copying the file:
windows/UsrConnectNode.ini )

Does anyone know what file [if any] i can copy and replace from the Windows Folder that stores the Wifi settings I am running on my current FW. [9.2.7 is my current]
Thanks in advance.

m8 sprite; it is in the backup section

Really? I always had to input the wifi network password every time I upgraded even with Sprite backup.

I found Mowifi in the download section...
it does a good job!

well the password must be reentered or else there is not much point in security. The preferences/options are backed up.