# Installation Issue Corporate Proxy

**URL:** <https://discourse.julialang.org/t/installation-issue-corporate-proxy/31789>\
**Category:** Juno\
**Created:** [December 3, 2019, 10:13am UTC](https://discourse.julialang.org/t/installation-issue-corporate-proxy/31789 "2019-12-03T10:13:35Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![philipp\_polterauer](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/philipp_polterauer/32/11393_2.png) [@philipp\_polterauer](https://discourse.julialang.org/u/philipp_polterauer)\
**Post date:** [December 3, 2019, 10:39am UTC](https://discourse.julialang.org/t/installation-issue-corporate-proxy/31789/3 "2019-12-03T10:39:10Z")

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Thanks for your answer!

I already fixed it like this for me, but the problem will still occur at everybody’s pc.

I already played around with many ways off setting the proxy, but in this case the proxy is detected correctly, as seen in

> prebuild-install http request Proxy setup detected (Host: xxx, Port: xxx, Authentication: No) Tunneling with httpsOverHttp

I removed the proxy host and port, but these are indeed correct, as far as i can tell the prebuild proxy authentication does not work although host and port are correct.

edit: more information on Proxy authentication

> 407 Proxy Authentication Required

Normally the authentication is done automatically based on windows credentials or?

edit2: Information on DefaultCredentials  
I managed to make binarybuilder work by passing default credentials (through powershell based client)  
See [Cannot add certain packages (proxy error)](https://discourse.julialang.org/t/cannot-add-certain-packages-proxy-error/29940/2)  
There I also got 407 before i added the credentials.

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