If you are having problems connecting to ACSecure, you can forget it's profile so that wifi network will not auto-connect.
To remove ACSecure from your Mac
- Go to System Preferences -> Network.
- At the top of the Network pane select Airport from the Show drop down.
- Select ACSecure and click the minus button at the bottom of the window.
- Click Apply to confirm your selection when closing the window.
You have successfully removed the offending wireless network from the Airport list!
Note: The prompts may look slightly different among the various versions of MacOS.