# Julia 1.6 libcurl firewall download issue: Windows Schannel certificate revocation check failure

**URL:** <https://discourse.julialang.org/t/julia-1-6-libcurl-firewall-download-issue-windows-schannel-certificate-revocation-check-failure/58021>\
**Category:** General Usage\
**Tags:** libcurl\
**Created:** [March 26, 2021, 2:43pm UTC](https://discourse.julialang.org/t/julia-1-6-libcurl-firewall-download-issue-windows-schannel-certificate-revocation-check-failure/58021 "2021-03-26T14:43:26Z")\
**Posts on this page:** 1\
**Showing post:** 34

<div class="post-metadata">

**Author:** ![HerAdri](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/heradri/32/5816_2.png) [@HerAdri](https://discourse.julialang.org/u/HerAdri)\
**Post date:** [April 23, 2021, 7:56am UTC](https://discourse.julialang.org/t/julia-1-6-libcurl-firewall-download-issue-windows-schannel-certificate-revocation-check-failure/58021/34 "2021-04-23T07:56:42Z")

</div>

[quote=“StefanKarpinski, post:31, topic:58021”]

```julia
(@v1.6) pkg> dev Downloads
     Cloning git-repo `https://github.com/JuliaLang/Downloads.jl.git`
ERROR: failed to clone from https://github.com/JuliaLang/Downloads.jl.git, error: GitError(Code:ERROR, Class:OS, failed to send request: The connection with the server was terminated abnormally
)

julia> using Downloads

(@v1.6) pkg> dev Downloads
     Cloning git-repo `https://github.com/JuliaLang/Downloads.jl.git`
ERROR: failed to clone from https://github.com/JuliaLang/Downloads.jl.git, error: GitError(Code:ERROR, Class:OS, failed to send request: The connection with the server was terminated abnormally
)
julia> names(Downloads)
6-element Vector{Symbol}:
 :Downloader
 :Downloads
 :RequestError
 :Response
 :download
 :request

```

[Julia 1.6.0 packages installation](https://discourse.julialang.org/t/julia-1-6-0-packages-installation/58552/10)

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