Oki MC853 User Manual page 1097

Note
You cannot operate the panel when WPS is in progress.
When the following screen is displayed, the setting of the wireless LAN is complete.
Memo
If the following screen is displayed, repeat the procedure from step 8.
[Overlap] is displayed when multiple WPS push buttons are pressed almost at the
same time at two or more wireless LAN access points and connection is not
established. Wait for a while, and then try again.
Topics
Checking That Connection is Established Correctly
1096