NGINX Loadbalancer leitet Anfrage nicht an VMWare Connection Server weiter

# enable reverse proxy
proxy_redirect              off;
proxy_set_header            Host            $http_host;
proxy_set_header            X-Real-IP       $remote_addr;
proxy_set_header            X-Forwared-For  $proxy_add_x_forwarded_for;
client_max_body_size        10m;
client_body_buffer_size     128k;
client_header_buffer_size   64k;
proxy_connect_timeout       90;
proxy_send_timeout          90;
proxy_read_timeout          90;
proxy_buffer_size           16k;
proxy_buffers               32  16k;
proxy_busy_buffers_size     64k;
proxy_ssl_verify			off;

upstream hrz-view-cluster {
    server horzsrv0102.horz.local:443 fail_timeout=1s max_fails=1;
    server horzsrv0202.horz.local:443 backup;
}

#redirect all http to https
server {
        listen 80 default;
        server_name view.horz.local;
        rewrite ^ https://view.horz.local permanent;
}

server {
    listen 443 ssl;
    server_name view.horz.local;
    ssl on;
    ssl_certificate /ssl/view.horz.local.crt;
    ssl_certificate_key /ssl/view.horz.local.key;

    location / {
        proxy_pass https://hrz-view-cluster;
    }
}