Adobe Connect with HAProxy

Hi all,

i need help with HAProxy and Adobe Connect. Here is the diagram:

And i followed these links for configuration:

Here is my configuration:

global
  chroot  /var/lib/haproxy
  daemon  
  group  haproxy
  log  127.0.0.1:514 local0 info
  log-send-hostname  
  maxconn  50000
  pidfile  /run/haproxy.pid
  ssl-default-bind-ciphers  ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256
  ssl-default-bind-options  no-sslv3 no-tlsv10 no-tlsv11 no-tls-tickets
  stats  socket ipv4@127.0.0.1:9999 level admin
  stats  socket /var/run/hapee-lb.sock mode 666 level admin
  stats  timeout 2m
  tune.ssl.default-dh-param  2048
  user  haproxy

defaults
  log  global
  log-format  'load_balancers: {"host":"%H","ident":"haproxy","pid":%pid,"time":"%Tl","haproxy":{"conn":{"act":%ac,"fe":%fc,"be":%bc,"srv":%sc},"queue":{"backend":%bq,"srv":%sq},"time":{"tq":%Tq,"tw":%Tw,"tc":%Tc,"tr":%Tr,"tt":%Tt},"termination_state":"%tsc","retries":%rc,"network":{"client_ip":"%ci","client_port":%cp,"frontend_ip":"%fi","frontend_port":%fp},"ssl":{"version":"%sslv","ciphers":"%sslc"},"request":{"method":"%HM","uri":"%[capture.req.uri,json(utf8s)]","protocol":"%HV","header":{"host":"%[capture.req.hdr(0),json(utf8s)]","xforwardfor":"%[capture.req.hdr(1),json(utf8s)]","referer":"%[capture.req.hdr(2),json(utf8s)]"}},"name":{"backend":"%b","frontend":"%ft","server":"%s"},"response":{"status_code":%ST,"header":{"xrequestid":"%[capture.res.hdr(0),json(utf8s)]"}},"bytes":{"uploaded":%U,"read":%B}}}'
  maxconn  50000
  mode  http
  option  redispatch
  option  dontlognull
  option  http-server-close
  option  forwardfor except 127.0.0.0/8
  option  http-pretend-keepalive
  retries  3
  stats  enable
  timeout  http-request 10s
  timeout  queue 1m
  timeout  connect 10s
  timeout  client 1m
  timeout  server 15m
  timeout  check 10s
  timeout  tunnel 3600s

frontend default
  bind haproxy_ip:443 ssl crt /etc/haproxy/certs/ no-sslv3 no-tls-tickets
  bind haproxy_ip:80 
  mode http
  acl connect_dev hdr(host) -i connect
  acl connect_devapp hdr(host) -i connect-app
  http-request redirect scheme https unless { ssl_fc }
  http-request set-header X-Forwarded-Proto https
  http-request set-header FRONT_END_HTTPS on
  use_backend connect_devapp if connect_devapp
  use_backend connect_dev if connect_dev

frontend eightzeroeightzero
  bind haproxy_ip:8080 
  mode http
  acl connect_dev hdr(host) -i connect
  acl connect_devapp hdr(host) -i connect-app
  use_backend connect_devapp_8080 if connect_devapp
  use_backend connect_dev_8080 if connect_dev

backend connect_dev
  balance leastconn
  server connect_dev_1 internal-ip-connect:8443 check maxconn 200 verify none

backend connect_dev_8080
  balance leastconn
  server connect_dev_1 internal-ip-connect:8080

backend connect_devapp
  balance leastconn
  server connect_devapp internal-ip-connect-app:9002

backend connect_devapp_8080
  balance leastconn
  server connect_devapp internal-ip-connect-app:8080

defaults
  log  global
  mode  tcp

frontend devmtg
  bind haproxy_ip:443 ssl crt /etc/haproxy/certs/ no-sslv3 no-tls-tickets
  mode tcp
  acl connect_devmtg hdr(host) -i connect-mtg
  use_backend connect_devmtg if connect_devmtg

frontend rtmp
  bind haproxy_ip:1935 name rtmp
  mode tcp
  option tcplog
  acl connect_devmtg hdr(host) -i connect-mtg
  acl connect_devapp_2 hdr(host) -i connect-app
  use_backend connect_devapp_2 if connect_devapp_2
  use_backend connect_devmtg if connect_devmtg

backend connect_devmtg
  mode tcp
  balance roundrobin
  stick store-request src
  stick on src
  stick-table type ip size 200k expire 20m
  server connect_devmtg internal-ip-connect-mtg:1935

backend connect_devapp_2
  mode tcp
  balance roundrobin
  stick store-request src
  stick on src
  stick-table type ip size 200k expire 20m
  server connect_devapp_2 internal-ip-connect-app:1935

And what i get when i try to connect via websockets:

{"type":"NCFunc","method":"connect","url":"rtmps://connect-mtg:443/?rtmp://localhost:8506/intro/bwcheck","params":{"ticket":"","reconnection":false,"swfUrl":"https://connect-dev/common/ccapps/root-react-app/meetingDiagnosticPage.html"}}

{"method":"onStatus","status":{"code":"NetConnection.Connect.Closed","description":"","encoding":0,"ncDetails":"","type":"status"},"type":"NCSink"}

Any hints?