Avalanche 5.0.x and higher
Remote Control 4.0 and higher
The devices may be Remote Controlled through the Avalanche Java Console.
The device can be Remote Controlled through the Web-Console on the same machine as Remote Control is installed to.
All other locations are unable to Remote Control devices via web-console
This is a problem that has to do with Compatibility View in the browser settings
Solution / Workaround:
On one of the problematic machines, go into Tools > Compatibility View Settings.
In this screen, there is a checkbox next to Display intranet sites in Compatibility View.
Uncheck this option and this machine can now remote control devices through the web-console
(Internet Explorer 8 is used in this example)