After installing the Android SDK, run the Android SDK Manager "Failed to fetch URL http://dl-ssl.google.com/android/repository/addons_list" (the URL part may be different) solution.
Click on the desktop in the lower left corner of the Start menu search, the following path: C:\windows\system32\drivers\etc copied to the Search window, click to search immediately, to find the Hosts file, is actually a plain text file.
1. Open with Notepad
2. Add 74.125.237.1 dl-ssl.google.com to the last line
3, save shutdown Host (if you have permission to modify this file)
This method I tried, absolutely easy to use, we can try.
The above three steps basically can be resolute question, if still have a problem, please try to do the following action:
1, turn on tools->options in the Android SDK Manager menu
2, in the Proxy Server column set up a proxy servers
3, in the Misc column tick two check box
The bottom line is that the domestic network is in harmony with the Google Server, or your network is unable to connect to the server, we would like to other ways to connect it.