HTTP status 407: Proxy Authentication Required

Hello, When i try to activate my license, i receive the proxy authentication error. After reading some related topics with this issueand since  i have the windows credentials for authentication, i think that the work around mentioned might work.
Can somebody give me a help with this?

Thank you for your support.

Hello Nuno,

In that case, please contact me at with a link to this thread. We will send you a file that we’ll ask you to copy into the eM Client folder in C:\Program Files (x86)


Hello Nuno / Maurice,

I have the same problem: “HTTP 407: Proxy Authentication Required. The program will be execute in offline mode”.

Please, I need a solution!!! 

Thank you.