Android SDK online installation failure troubleshooting

last question about sdk. then, I downloaded android-sdk-windows.rar from google, and then clicked SDK Manager. The API level cannot be refreshed, so I began to find a lot of information on the Internet to solve this problem and modify hosts, both HTTP and HTTPS cannot be solved, which brings me a lot of confusion! Interface error:

<Textarea class = "html" readonly name = "code"> fetching http://dl-ssl.google.com/android/repository/addons_list-1.xml <br/> failed to fetch URL http://dl-ssl.google.com/android/repository/addons_list-1.xml, reason: connection to http://dl-ssl.google.com refused <br/> fetched add-ons list successfully <br/> fetching URL: <a href = "http://dl-ssl.google.com/android/repository/repository-6.xmlFailed"> http://dl-ssl.google.com/android/repository/repository-6.xml <br/> failed </a> to fetch URL <a href = "http://dl-ssl.google.com/android/repository/repository-6.xml"> http://dl-ssl.google.com/android/repository/repository-6.xml </a>, reason: connection to http://dl-ssl.google.com refused <br/> done loading packages. <br/> </textarea>Fetching <a href = "http://dl-ssl.google.com/android/repository/addons_list-1.xml"> https://dl-ssl.google.com/android/repository/addons_list-1.xml </a> <br/> failed to fetch URL <a href = "http://dl-ssl.google.com/android/repository/addons_list-1.xml"> https://dl-ssl.google.com/android/repository/addons_list-1.xml </a>, reason: connection to <a href = "http://dl-ssl.google.com"> https://dl-ssl.google.com </a> refused <br/> fetched add-ons list successfully <br/> fetching URL: <a href = "http://dl-ssl.google.com/android/repository/repository-6.xml"> https://dl-ssl.google.com/android/repository/repository-6.xml </a> <br/> failed to fetch URL <a href = "http://dl-ssl.google.com/android/repository/repository-6.xml"> https://dl-ssl.google.com/android/repository/repository-6.xml </a>, reason: connection to <a href = "http://dl-ssl.google.com"> https://dl-ssl.google.com </a> refused <br/> done loading packages.

I am so confused that the connection has failed. Does China Telecom block Google Android? recently, I have an idea: How does China Telecom shield android but not Google search engines, if China Telecom shields Google search engines, it is estimated that China Telecom will also collapse! I made a choice and used http://www.google.com/as an agent. For details, see:

Then I Click Reload under a package to reload the package. The API level is all displayed. It's really cool. I hope to help you ~