Users are Redirected to the Cisco ASA VPN Login Window after Completing MFA Prompt

This article addressed the issue encountered in the following behavior:

1. Open the Cisco VPN client.
2. Enter username and password.
3. Enter the corresponding number to the appropriate second factor.
4. Click Continue.
5. Complete the MFA challenge.
6. The user is redirected to the VPN login form again.

The behavior is inconsistent; for example, the second attempt fails too, but it works on the third attempt.

• Cisco ASA VPN RADIUS
•  AAA server

• Increase the Timeout (seconds) to 60 seconds on the AAA server. (Part 3 - Step 2 - #4)
• Verify that the Accounting Server Group value is None  as shown in the doc (Part 4 - Step 7)