|2017/12/11 16:32:45||UP, HTTP 200|
|2017/12/01 00:28:55||UP, HTTP 200|
|2017/11/30 02:36:39||UP, HTTP 200|
- Press CTRL + F5. If problem persists, don't worry.
- Make sure there isn't a problem with connecting to other websites.
- Use alternative URLs.
- Check firewall. It may have blocked the domain.
Clear DNS cache (for Windows) - Start > Command Prompt > type "ipconfig /flushdns"
If you are not satisfied with tsinghua.edu.cn's availability or services, please, feel free to join the discussion.