Unable to install AD Domain wildcard Certificate on Ubuntu Server 16.04

I’ve tried to configure https on our Company Gitlab-server, but I’m not able to configure it right.

I started with a *.domain.tld.pfx certificate, out of this I generated *.domain.tld.crt & *.domain.tld.key
I used this HowTo https://www.markbrilman.nl/2011/08/howto-convert-a-pfx-to-a-seperate-key-crt-file/

Then I changed the /etc/gitlab/gitlab.rb

external_url ‘https://git.domain.tld

nginx[‘enable’] = true
nginx[‘redirect_http_to_https’] = true
nginx[‘ssl_certificate’] = “/etc/gitlab/ssl/cert.crt”
nginx[‘ssl_certificate_key’] = “/etc/gitlab/ssl/cert.key”

letsencrypt[‘enable’] = false

I allready read http://forum.gitlab.com/t/unable-to-install-ad-domain-wildcard-certificate-on-ubuntu-16-04/6316

and

all documentations I found.

Ubuntu Server 16.04 LTS
gitlab-ce 11.4.5

the error.log isnt updating anymore

Chrome error description: ERR_TUNNEL_CONNECTION_FAILEDERR_TUNNEL_CONNECTION_FAILED

Edge error description:
INET_E_SECURITY_PROBLEM

Firefox error description:
no-error

I hope i did not forget anything

Where are you looking for the error.log? I had that problem, and later discovered it to be at …
/var/log/gitlab/nginx/error.log