I have Alteryx 11 installed on a server with absolutely no access to the 'outside world' and having the following two issues while RDP in to that server.
1) Launching Alteryx takes about 2 minutes. The server is quite beefy with very little activity, so I would expect it to launch in seconds not minutes.
2) Clicking on "search" and typing even 1 character pauses the entire window for about 2 minutes.
I just wanted to make both of these are being addressed, since you mentioned the problems did not occur on machines with no internet access.