Horizon 7 - Wildcard SSL certificate error

Hey guys,

I am setting up a new Horizon 7 server. If I use a self-signed certificate from my CA it works fine, but I need to use a public one so people can connect externally.

I have a wildcard certificate from GoDaddy which works just fine everywhere (and on my old Horizon 6 server), but when I import it to this server (it's valid, with a key etc etc) and restart the services, I get the error ERR_SSL_VERSION_OR_CIPHER_MISMATCH in my browser.

So, what's going on here? Did Horizon 7 introduce new requirements for certs which my current one perhaps does not fulfill?

Thanks