I have installed and configured the DUO Proxy server and have attempted configurations via “active directory” and “Radius” to our Domain Controller, following your online documentation (Two-Factor Authentication Using RADIUS | Duo Security) . In both cases, it appears that the connectivity is good and all seems well until I attempt to connect to the VPN.
The AnyConnect client login appears, I enter username/pw as usual, I then get prompted on my phone for the DUO push approval (all good so far), but once I “approve” on my phone, the Cisco AnyConnect prompt returns to the original username/pw prompt instead of connecting to the VPN. This loop just repeats itself over and over.
Network info: Cisco RV340 Firewall is the VPN endpoint, AnyConnect Client version is 4.10.03104, and we are authenticating active directory credentials against a Windows Domain Controller as the primary authentication and then DUO for the 2FA
Old (working config) is just the Cisco RV340 authenticating against the Domain Controller via Radius at the moment.
Anyone have any info that could help me here.