Error 502

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What is error 502?
A server (not necessarily a Web server) is acting as a gateway or proxy to fulfil the request by the client (e.g. your Web browser or our CheckUpDown robot) to access the requested URL. This server received an invalid response from an upstream server it accessed to fulfil the request.

In a word, it is a kind of internet error.
How to fix error 502?
When you confront with error 502, hold down the "Ctrl" key on your keyboard and press "F5." This clears the cache for that page. You could also try loading the site in a different browser to make sure that it's not a problem with yours. If these steps still don't work, try restarting your router, your modem and finally your computer. Rebooting these devices is to clear up a variety of errors that lead to error 502.
If these steps still could not fix error 502, then download SmartPC Fixer is your best choice.

This software is designed to fix error 502 specially.
It has a powerful function of fixing pc errors:such as Windows update errors, runtime error, certificate error, script error, install error, misssing and corrupted dll, DNS error, etc.
If you meet with following errors you could also fix them by SmartPC Fixer.
proxy error
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gateway error 502
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