A Windows 7 or Windows 8.x/10 client may fail to establish a DirectAccess connection using the IP-HTTPS IPv6transition technology. When troubleshooting this issue, running ipconfig.exe show 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 0x800b0109 with an interface status Failed to connect to the IPHTTPS server; waiting to reconnect.
Error code 0x800b0109 translates to CERT_E_UNTRUSTEDROOT, indicating the client was unable to establish an IP-HTTPS connection because the certificate presented during the SSL handshake was issued by a certification authority that was not trusted. This commonly occurs when the DirectAccess server is configured with an SSL certificate issued by the internal PKI and DirectAccess clients are provisioned using offline domain join without using the /rootcacerts switch. This can also happen if DirectAccess is configured to use a self-signed certificate for IP-HTTPS, and the certificate is either renewed or DirectAccess is uninstalled and reinstalled.
To resolve IP-HTTPS error code 0x800b0109, obtain the root certificate for the certificate authority that issued the SSL certificate used for IP-HTTPS and import it in to the DirectAccess client’s Trusted Root Certification Authorities local computer certificate store. Once complete, restart the IP helper service to reinitiate an IP-HTTPS connection.
Additional Information
Provisioning DirectAccess Clients using Windows Offline Domain Join
Troubleshooting DirectAccess IP-HTTPS Error Code 0x90320
Troubleshooting DirectAccess IP-HTTPS Error 0x2af9
DirectAccess Expired IP-HTTPS Certificate and Error 0x800b0101
SSL Certificate Considerations for DirectAccess IP-HTTPS
Implementing DirectAccess with Windows Server 2016
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Posted by Richard M. Hicks on April 6, 2017
https://directaccess.richardhicks.com/2017/04/06/troubleshooting-directaccess-ip-https-error-code-0x800b0109/
When configuring Windows 10 Always On VPN using Extensible Authentication Protocol (EAP), the administrator may encounter a scenario in which the client connection fails. The event log will include an event ID 20227 from the RasClient source that includes the following error message.
