bernie2459 - Thanks for asking your question on the support forum!
At the time of this post, the NetVanta Secure VPN client is not supported on machines that run Windows 8.1. If you have any further questions, please contact Adtran Technical Support. You can open a ticket in one of the following ways :
- Open a webticket by clicking on this link: Create a Service Request
- Open a ticket by emailing firstname.lastname@example.org
- Open a ticket by phone by calling 1-888-423-8726
I went ahead and flagged the "Correct Answer" on this post to make it more visible and help other members of the community find solutions more easily. If you don't feel like the answer I marked was correct, feel free to come back to this post to unmark it and select another in its place with the applicable buttons. If you have any additional information on this that others may benefit from, please come back to this post to provide an update. If you still need assistance, we would be more than happy to continue working with you on this - just let us know in a reply.