Sophos Firewall v20: Captive Portal SSO & Group Import

In this video, we give an overview of the updates to Captive Portal single-sign on and Azure AD group import in Sophos Firewall v20.
Relevant Documentation:
Microsoft URL whitelisting:
docs.sophos.co...
Azure App Creation:
techvids.sopho...
doc.sophos.com...
----------------------------------------------------------------------------------------------
For more information about the Sophos Firewall v20 Early Access Program:
community.soph...
Find out more about Sophos Firewall:
www.sophos.com...
Join our Sophos Community at community.sophos.com
For more helpful videos, go to techvids.sophos.com

[@tuanhungnguyen1342]

I am configuring users to log in with Captive Portal with Azure AD. Everything works but it seems the user will often be logged out after about 15-30 minutes. How can I improve this problem?