Go to the App Store and download Global Protect. Select Global Protect and click Get.
Click on the Global protect icon.
Enter trestle.colum.edu for the address and click Connect.
Enter your Email Address and Office 365 Password. Click Log On.
You are now successfully connected to the VPN.
Please note: If you are trying to use a hotspot to connect, your provider may not allow VPN on their network which may cause difficulties connecting. You will need to contact your provider for further assistance contenting to the VPN from this device.