I insatlled portal on a internal sever behind our firewall. Opened port 443 enabled ssl. Configured web adapter on web server which sits outside of the firewall. When everything is configured correctly everything works correctly on the inside of our network. But when accessing it from the outside reaching the portal is good but hitting the sign in it redirects it back the the url with the machine name of the web server and that sign in page will not load has anyone else seen this.