No credentials are available in the security package

Hi, I'm trying to setup secure web sockets so that I can run a webgl build of our Unity game. I have unsecure web sockets and TCP working fine, but when I followed the instructions to get the SSL certificate installed, then try to run LoadBalancing, I get the following error - 4724: 09:13:26.023 - CService::OnException() - Exception: CCredentials::CreateCredentialsHandle() - No credentials are available in the security package I know the ssl is valid because I'm also using it on the domain that the webgl is hosted (this is also where photon is running from). I've tried what I can but have hit a dead end, so if anyone could help me with this I would really appreciate it!