A Windows 7 or Windows 8.x/10 client may fail to establish a DirectAccess connection using the IP-HTTPS IPv6 transition technology. When troubleshooting this issue, running ipconfig.exe shows that the media state for the tunnel adapter iphttpsinterface is Media disconnected.

Running the Get-NetIPHttpsState PowerShell command on Windows 8.x/10 clients or the netsh interface httpstunnel show interface command on Windows 7 clients returns an error code of 0x90320, with an interface status Failed to connect to the IPHTTPS server; waiting to reconnect.

Error code 0x90320 translates to SEC_I_INCOMPLETE_CREDENTIALS, indicating the client was unable to authenticate to the DirectAccess server during the TLS handshake when establishing the IP-HTTPS IPv6 transition tunnel. This occurs when the DirectAccess server or an Application Delivery Controller (ADC) is configured to perform client certificate authentication for IP-HTTPS connections. The client may fail to authenticate if it does not have a valid certificate issued by the organization’s internal certification authority (CA) or if the DirectAccess server or ADC is configured to perform IP-HTTPS client authentication incorrectly.

To resolve this issue, ensure that a valid certificate is installed on the DirectAccess client. In addition, ensure that the DirectAccess server or ADC is configured to use the correct CA when authenticating clients establishing IP-HTTPS connections.

Additional Information

DirectAccess IP-HTTPS Preauthentication 

DirectAccess IP-HTTPS Preauthentication using Citrix NetScaler

DirectAccess SSL Offload and IP-HTTPS preauthentication using Citrix NetScaler 

DirectAccess IP-HTTPS preauthentication using F5 BIG-IP 

SSL Certificate Considerations for DirectAccess IP-HTTPS