Sony PCWA-A220 - Manual (Page 56)

Setup password
Setup passw ord is the passw ord needed to be typed to start the Access Point Setup Utilities. "Public" is input as the initial value at the time of ex-factory, but you
can change that using the Custom Access Point Setup Utility.
Therefore, w e strongly recommend that the administrator change the passw ord. How ever, you should take a note of the passw ord that w as set in case it is
forgotten. If it is forgotten, a log file is created in the folder to w hich the Wireless LAN system is installed on the client computer w here the setting for the
passw ord w as made. You can use a text editor to view the passw ord in the log file.
The name of the log file is Access Point ID + conf (w hen the ID is 22a224, it is 22a224conf).
If you cannot remember the passw ord at any means, you can cancel the Access Point using the Softw are Reset mode. Refer to Reset mode and Softw are Reset
mode for details regarding the Softw are Reset mode.
Page 56