Please help me: often when I try to download a file from the site via htttps, after clicking to download the file nothing happens and after some time the web page becomes with McAfee Web GateWay error: The proxy did not recieve a valid response in time. And when I put this site to a white list on WEB GateWay - all works properly. Version of McAfee Web Gateway is 18.104.22.168.0
Enable rule tracing in the troubleshooting section of the configuration tab. Then look in "rule tracing central" in the Troubleshooting tab and reproduce the issue. Post your findings here.