Win server 2012 r2
Joined to Domain.local as RDWEBSVR.domain.local
installed all 185 critical and recommended updates.
created certificate for outside.FQDN.com
set up firewall to pass https: to/from RDWESVR.domain.local using outside.FQDN.com
added RDWeb role as a single server deployment. All rolls are on the same server using quick deployment. All domain users given access.
added outside.FQDN.com cert to gateway.
added RD licensing.
verified port 443 not blocked by firewall.
checked LAN client connectivity. First logon to gain access to Web apps -OK. second Logon to launch Web Apps -OK Apps launch fine.
Next Checked access from outside of LAN. First Logon to gain access to WEB Apps -OK. Second Logon to launch Web-Apps -OK, however receive error message that server cannot be found and will not launch.
verified that https://outside.FQDN.com/rdweb could be launched and Apps worked correctly from deployed server.
verified iis RDWeb pages TSGateway value as outside.FQDN.com
ran set-RDPublishedName.PS1 and set name to outside.FQDN.com
neither of these made any difference.
Checked RD server farm verified that outside.FQDN.com was selected and it showed "OK".
What have I missed?