As many others, we are using proxies internally, blocking direct HTTP/S connections outbound. Clients' browsers are configured to "automatically detect settings" and get proxy information via WPAD configuration file. PrevX can't connect to the cloud upon initial installation unless proxy is manually hardcoded; however the client that's internal and connected to the proxy, can become external by connecting to a WAP 5 minutes later -- this is exactly why we don't hardcode proxies in the browsers by hand and use proxy autoconfiguration. With PrevX, user has to manually check/uncheck proxy information every time he/she changes location. Is there a way to make PrevX to be able auto detect proxy via WPAD? If not, can you tell me port and IP/subnet of the cloud to which clients connect to, so I can make a temporary exception on the fwall to allow this traffic outbound? Wireshark sees an HTTP connection to 220.127.116.11 every time I open a new file, but I don't know how presistent that conection is across multiple clients. Thank you!