Python 为什么conda在.condarc文件中未列出的频道中查找包？

我正在努力在Win10计算机上安装软件包，因为我没有管理员权限，并且在整个公司基础设施中限制了对Internet的访问。我已经安装了Python3.6和其他几个包，我想克隆环境来做一些实验。由于我必须仅从公司的存储库安装软件包，我已将以下行添加到我的

%userprofile%

目录中的

condarc

文件中：

ssl_verify: false

channels:
  - https://uname:password@corporateURL/repository/type

现在，如果我尝试使用

conda create--clone base--name exp_env

克隆基本环境，它会得到除一个之外的所有包，下载和提取包在该包中显示0%，并告诉我

CondaHTTPError: HTTP 000 CONNECTION FAILED for url <https://repo.anaconda.com/pkgs/main/win-64/pckname-version-pyversion.tar.bz2>
Elapsed: -

An HTTP error occurred when trying to retrieve this URL.
HTTP errors are often intermittent, and a simple retry will get you on your way.

(base) %userprofile%>conda info

     active environment : base
    active env location : %ProgramFiles%\Anaconda3
            shell level : 1
       user config file : %userprofile%\.condarc
 populated config files : %userprofile%\.condarc
          conda version : X
    conda-build version : T
         python version : Z.final.0
       base environment : %ProgramFiles%\Anaconda3  (read only)
           channel URLs : https://user:password@corporateURL/repository/type/win-64
                          https://user:password@corporateURL/repository/type/noarch
                          https://user:password@www.corporateURL/repository/type2/win-64
                          https://user:password@www.corporateURL/repository/type2/noarch
                          https://user:password@corporateURL/repository/type3/win-64
                          https://user:password@corporateURL/repository/type3/noarch
          package cache : %ProgramFiles%\Anaconda3\pkgs
                          %userprofile%\AppData\Local\conda\conda\pkgs
       envs directories : %userprofile%\AppData\Local\conda\conda\envs
                          %ProgramFiles%\Anaconda3\envs
                          %userprofile%\.conda\envs
               platform : win-64
             user-agent : conda/X requests/Y CPython/Z Windows/10 Windows/S
          administrator : False
             netrc file : None
           offline mode : False