I just went back to your initial post, you said it is only IE. Do you use any plugins there (antivirus, add blocker)? Can you check on one of the test setups if you see the same problem with that browser?
I just went back to your initial post, you said it is only IE. Do you use any plugins there (antivirus, add blocker)? Can you check on one of the test setups if you see the same problem with that browser?