I've just recently updated my pc from windows 7 to windows 8 and I'm having the exact same problem: 'Communication Failure'.
I have a disabled all firewall systems, however the same issue is still occuring. I've also spoken to ASUS the manufacturer, who suggested a reinstallation process of windows 8, after which it continued to display 'Communication Failure'.
Much appreciated if you could provide any information or direct links to downloading Revit 2014 and AutoCAD 2014.
After accepting the web EULA, remain on the web page till the time the .exe is completely downloaded. Once it is downloaded, click/run the .exe. Till the time you run the downloaded .exe, do not click on any other links or buttons within the same autodesk portal page.
Do not click on the already downloaded <>_Setup.exe, that will not work. You need to go back to portal and click on Install Now button for each re-install attempt.
Hope this helps, let me know otherwise.
more of the same for me. have read this entire thread and acted accordingly but no luck what ever i try. im trying to install the autocad 2014.
Are you starting the workflow from the Install Now button on the web page and then waiting on the web page till the time a small self extracting .exe gets downlaoded? Once it gets downloaded, click on the .exe. Untill the point where you run the .exe, do not refresh, close or click on any other links in the web page from where you clicked on Install Now button.
If the problem is still appearing not resolving, then drop me a private message.