The webRDP HTML5 Client uses the webSocket protocol to provide efficient communication between the client workstation and the webNetwork server. There are some instances where webSocket cannot be used due to the webNetwork relay being placed behind a Load Balancer.
As of webNetwork 6.3.1.72, we have added the ability to disable webSockets and instead use LongPolling. LongPolling isn't as efficient as webSockets, but it doesn't require specific compatibility from a Load Balancer.
To configure an existing webRDP HTML5 RDP application to use LongPolling instead of webSockets:
1. Open the webAdmin Dashboard.
2. Expand Applications Admin.
3. Locate and select the webApp's object.
4. Select the webApp's OPTIONS tab.
5. In the "webRDP HTML5 Client Parameters" field, add the following Parameter:
name: forceLongPolling
value: true
6. Save the webApp with the added parameter.