We have installed the RDS server in a windows server 2008 R2 with 5 roles as mentioned below
Remote Desktop Connection Broker
Remote Desktop Gateway
Remote Desktop Licensing
Remote Desktop Session Host
Remote Desktop Web Access
We have configured port forwarding in a gateway level device.
External and internal URL of RDS
Internal URL is going to be http://MP-rds.abc.com
External URL is going to be http://rds.abc.com
currently for testing we’re using http://remote2.abc.com)
Connecting internally works perfectly but connecting externally we receive the following error when attempting to launch an app: "The remote computer could not be found".