From the desktop, select the WIFI icon. On the drop down menu, select WIFI@OU SSID. 
Enter your OU username (OUNet ID or OUHSC username) and password. 
Select Continue when the Verify Certificate prompt appears. 
Enter your computer’s username and password to update the Certificate Trust Settings. NOTE: This is not your OU Net ID and password. 
For more information about WIFI@OU, please visit this article.