I have a user that is trying to connect to my VPN device using Anyconnect with his Windows 10 Surface. He use to be able to do it a month ago but now he gets this error everytime. (Attachment). He has connected to his wifi at home and even in a McDonald's wifi and still gotten the same error. I turned off his firewall to see if that was causing an issue but that didn't help. Does anyone have anything I can try to fix his VPN connection?