Updated certificates on SSTP VPN, now clients sessions get immediately gete

I updated certificates on my SSTP VPN (Server 2008). I bound the certs to SSTP listener, and now when my clients try to connect, they get terminated right away. On the server side, they show as connecting. On the client side, they connect, then it gets the following information event: Event 20226 RasClient reason code for termination is 829. I watch on the server and people connect for a second or 2 and then are kicked off. I did not make any other changes, other than the certificates. What could this be? Everything online seems to be pointing to encryption mismatch, routes, or physical issues with modems or routers. Any and all help would be greatly appreciated because I have 3600+ users that cannot connect to the network.