502 bad gateway is a common internet connection error that usually means the page cannot be opened, the network cannot be connected, or there are server issues. Below are some specific solutions that may help you resolve the problem.
What does 502 bad gateway mean?
In simple terms, it means that the server did not receive a response, usually indicating a problem with the other server.
Solutions for 502 bad gateway
If it's a server issue, you can only wait for the other party to fix it.
First, DNS cache problem
This usually happens when you try to access foreign websites that are blocked by your country's firewall, such as YouTube or Facebook, without using a VPN.
Solution: This issue is usually resolved within a few minutes. You can also try running "ipconfig /flushdns" in the command prompt to refresh the DNS cache.
Second, the browser is using a proxy that is not working.
Solution: Disable the proxy.
Third, DNS hijacking.
Solution: Change DNS settings. Recommended options are 114.114.114.114 or Alibaba Public DNS: 223.5.5.5, 223.6.6.6.
Lastly, a special case:
Software hijacking.
Simply terminate the related programs. For example,
1. Use 360 Accelerator - Network Speed - Details - Find "Tianqi Calendar" - Click "Manage" on the right - End the process.