I am having an issue with Qlik server and authenticating users using the REST api. Basically, whenever I try to make a REST call to the QPS to get a Qlik ticket, the request is rejected with a 403 Client Certificate Invalid error. I have double checked the certificate requirements for Qlik, and my server/client certificate pass all of them. The central node name matches with who the cert is issued to, the thumbprint on the central proxy matches the cert thumbprint, the request is being sent with the appropriate cert, and yet it doesn't work. Does anyone know what the problem is or what other settings I may have overlooked?