Could not resolve host on Win10

‘’’
julia> versioninfo()
Julia Version 1.3.1
Commit 2d5741174c (2019-12-30 21:36 UTC)
Platform Info:
OS: Windows (i686-w64-mingw32)
CPU: Pentium® Dual-Core CPU E6500 @ 2.93GHz
WORD_SIZE: 32
LIBM: libopenlibm
LLVM: libLLVM-6.0.1 (ORCJIT, penryn)
‘’’
The firewall is disabled, and so is the antivirus. The computers are connected to the University’s internal network. Proxy settings are registered for each of them using Netsh winhttp. Packages are downloaded, but some of them are not built. Same problem on Win10x64. On a windows 7 computer, there are no such problems

(v1.3) pkg> add Plots
   Cloning default registries into `C:\Users\Admin\.julia`
   Cloning registry from "https://github.com/JuliaRegistries/General.git"
     Added registry `General` to `C:\Users\Admin\.julia\registries\General`
 Resolving package versions...
 Installed PlotThemes ───────── v1.0.1
...
Building FFMPEG → `C:\Users\Admin\.julia\packages\FFMPEG\guN1x\deps\build.log`
  Building GR ────→ `C:\Users\Admin\.julia\packages\GR\oiZD3\deps\build.log`
┌ Error: Error building `GR`:
│ [ Info: Downloading pre-compiled GR 0.44.0 Windows binary
│ ┌ Error: Download failed: curl: (6) Could not resolve host: github.com
│ └ @ Base download.jl:43
│ ┌ Error: Download failed: curl: (6) Could not resolve host: gr-framework.org
│ └ @ Base download.jl:43
│ [ Info: Using insecure connection
│ ┌ Error: Download failed: curl: (6) Could not resolve host: gr-framework.org
│ └ @ Base download.jl:43
│ [ Info: Cannot download GR run-time
│ ERROR: LoadError: IOError: chmod: no such file or directory (ENOENT)
│ Stacktrace:
│  [1] uv_error at .\libuv.jl:97 [inlined]
│  [2] #chmod#21(::Bool, ::typeof(chmod), ::String, ::UInt16) at .\file.jl:888
│  [3] chmod at .\file.jl:887 [inlined]
│  [4] #rm#9(::Bool, ::Bool, ::typeof(rm), ::String) at .\file.jl:258
│  [5] rm(::String) at .\file.jl:253
│  [6] top-level scope at C:\Users\Admin\.julia\packages\GR\oiZD3\deps\build.jl:118
│  [7] include at .\boot.jl:328 [inlined]
│  [8] include_relative(::Module, ::String) at .\loading.jl:1105
│  [9] include(::Module, ::String) at .\Base.jl:31
│  [10] include(::String) at .\client.jl:424
│  [11] top-level scope at none:5
│ in expression starting at C:\Users\Admin\.julia\packages\GR\oiZD3\deps\build.jl:57
└ @ Pkg.Operations D:\buildbot\worker\package_win32\build\usr\share\julia\stdlib\v1.3\Pkg\src\backwards_compatible_isolation.jl:649
  Building Plots ─→ `C:\Users\Admin\.julia\packages\Plots\qZHsp\deps\build.log`
(v1.3) pkg> add SymEngine
 Resolving package versions...
 Installed OpenSpecFun_jll ── v0.5.3+1
 Installed SymEngine ──────── v0.7.1
 Installed SpecialFunctions ─ v0.10.0
  Updating `C:\Users\Admin\.julia\environments\v1.3\Project.toml`
  [123dc426] + SymEngine v0.7.1
  Updating `C:\Users\Admin\.julia\environments\v1.3\Manifest.toml`
  [efe28fd5] + OpenSpecFun_jll v0.5.3+1
  [276daf66] + SpecialFunctions v0.10.0
  [123dc426] + SymEngine v0.7.1
  Building SymEngine → `C:\Users\Admin\.julia\packages\SymEngine\RK5Ks\deps\build.log`
(v1.3) pkg> add Plotly
 Resolving package versions...
 Installed JSExpr ────────────────────── v0.5.1
...
[7b1f6079] + FileWatching
  Building MbedTLS ─→ `C:\Users\Admin\.julia\packages\MbedTLS\a1JFn\deps\build.log`
  Building WebIO ───→ `C:\Users\Admin\.julia\packages\WebIO\2nnB1\deps\build.log`
┌ Error: Error building `WebIO`:
│ [ Info: Downloading WebIO core bundle from unpkg...
│ ┌ Error: Download failed: curl: (6) Could not resolve host: unpkg.com
│ └ @ Base download.jl:43
│ ERROR: LoadError: failed process: Process(`'C:\Windows\System32\curl.exe' -s -S -g -L -f -o 'C:\Users\Admin\.julia\packages\WebIO\2nnB1\deps\bundles\webio.bundle.js' https://unpkg.com/@webio/webio@0.8.13/dist/webio.bundle.js`, ProcessExited(6)) [6]
│
│ Stacktrace:
│  [1] pipeline_error at .\process.jl:525 [inlined]
│  [2] download_curl(::String, ::String, ::String) at .\download.jl:44
│  [3] download at .\download.jl:62 [inlined]
│  [4] download_bundle(::String, ::String, ::String) at C:\Users\Admin\.julia\packages\WebIO\2nnB1\deps\bundlepaths.jl:43
│  [5] download_js_bundles() at C:\Users\Admin\.julia\packages\WebIO\2nnB1\deps\bundlepaths.jl:56
│  [6] top-level scope at C:\Users\Admin\.julia\packages\WebIO\2nnB1\deps\build.jl:6
│  [7] include at .\boot.jl:328 [inlined]
│  [8] include_relative(::Module, ::String) at .\loading.jl:1105
│  [9] include(::Module, ::String) at .\Base.jl:31
│  [10] include(::String) at .\client.jl:424
│  [11] top-level scope at none:5
│ in expression starting at C:\Users\Admin\.julia\packages\WebIO\2nnB1\deps\build.jl:6
└ @ Pkg.Operations D:\buildbot\worker\package_win32\build\usr\share\julia\stdlib\v1.3\Pkg\src\backwards_compatible_isolation.jl:649
  Building Blink ───→ `C:\Users\Admin\.julia\packages\Blink\4FM8Y\deps\build.log`
  Building PlotlyJS → `C:\Users\Admin\.julia\packages\PlotlyJS\AhkM5\deps\build.log`
┌ Error: Error building `PlotlyJS`:
│ ┌ Error: Download failed: curl: (6) Could not resolve host: api.plot.ly
│ └ @ Base download.jl:43
│ ERROR: LoadError: Failed to download plotschema.json from https://api.plot.ly/v2/plot-schema?sha1. You may use your web-browser to download it from https://api.plot.ly/v2/plot-schema?sha1 and place it in C:\Users\Admin\.julia\packages\PlotlyJS\AhkM5\deps.
│ Stacktrace:
│  [1] error(::String) at .\error.jl:33
│  [2] datadown(::String, ::String, ::String) at C:\Users\Admin\.julia\packages\PlotlyJS\AhkM5\deps\build.jl:15
│  [3] top-level scope at C:\Users\Admin\.julia\packages\PlotlyJS\AhkM5\deps\build.jl:20
│  [4] include at .\boot.jl:328 [inlined]
│  [5] include_relative(::Module, ::String) at .\loading.jl:1105
│  [6] include(::Module, ::String) at .\Base.jl:31
│  [7] include(::String) at .\client.jl:424
│  [8] top-level scope at none:5
│ in expression starting at C:\Users\Admin\.julia\packages\PlotlyJS\AhkM5\deps\build.jl:20
│ caused by [exception 1]
│ failed process: Process(`'C:\Windows\System32\curl.exe' -s -S -g -L -f -o 'C:\Users\Admin\.julia\packages\PlotlyJS\AhkM5\deps\plotschema.json' 'https://api.plot.ly/v2/plot-schema?sha1'`, ProcessExited(6)) [6]
│
│ Stacktrace:
│  [1] pipeline_error at .\process.jl:525 [inlined]
│  [2] download_curl(::String, ::String, ::String) at .\download.jl:44
│  [3] download at .\download.jl:62 [inlined]
│  [4] datadown(::String, ::String, ::String) at C:\Users\Admin\.julia\packages\PlotlyJS\AhkM5\deps\build.jl:10
│  [5] top-level scope at C:\Users\Admin\.julia\packages\PlotlyJS\AhkM5\deps\build.jl:20
│  [6] include at .\boot.jl:328 [inlined]
│  [7] include_relative(::Module, ::String) at .\loading.jl:1105
│  [8] include(::Module, ::String) at .\Base.jl:31
│  [9] include(::String) at .\client.jl:424
│  [10] top-level scope at none:5
└ @ Pkg.Operations D:\buildbot\worker\package_win32\build\usr\share\julia\stdlib\v1.3\Pkg\src\backwards_compatible_isolation.jl:649

The problem only occurs on the latest version of win 10. When used on a version from the old installer other errors occur for which solutions have already been found