Hi, I need your help for the issue below.
RemoteApp is not available under the certain conditions,
which shows "Remote App Disconnected. Remote computer cannot be found".
It works when connected from office LAN but shows error above when connected to office LAN via VPN with FortiGate.
・Environment
HW: AWS
RD Broker/RDWeb/RD Session Host Server=WinSvr 2016
RD Gateway Server -> Not setup
Certificate -> Not applied
・Client
PC：Windows 7/Windows10
iPad:iOS 10.3.1 and uses the app RD Client
・Network
A. Office LAN
B. VPN connection via FortiGate from remote site
-> FortiGate is already setup to connect to AWS from Office without VPN
・Published RemoteApp
A. exe file of our scratch business system
B. Calculator of Windows
・Conditions
A. Connect to RemoteApp via .rdp file from Office LAN by PC
-> Success
B. Connect to RemoteApp via RDWeb(https://(ipaddress)/RDWeb) from Office LAN by PC
-> Success
C. Connect to RemoteApp via .rdp file from remote site by PC
-> Success
D. Connect to RemoteApp via RDWeb(https://(ipaddress)/RDWeb) from remote site by PC
-> RDWeb login success.
-> Launching Remote App shows error ("Remote App Disconnected. Remote computer cannot be found")
E. Connect to RemoteApp via the app RD Client from remote site by iPad
-> Shows error.
("Unable to connect to remote PC. Please verify Remote Desktop is enabled, turned on
and available on the network, and then try again.』)
-> At the same time, RDP connection to AWS successed, which means AWS is on.
・Consideration
A. Both of the business system and Calculator shows the same error
-> The business system is not the cause.
B. From the result of Conditions, it fails to launch RemoteApp when connecting RDWeb
from remote site (with FortiGate).
Does anyone have any idea what to check and solve the issue?
Is there any possibility that something is missing in our DNS?
I have been working on this almost a week but there is no key for the solution.
Thank you for your advice.