502 proxy error

Hi Atlassians,

I was trying to resolve issue related to "Collaborative Editing" and  I requested my Linux admin to open port 8091 for this purpose.

Not sure suddenly I am not able to access the confluence application from UI.


Proxy Error

The proxy server received an invalid response from an upstream server.
The proxy server could not handle the request GET /.

Reason: Error reading from remote server


Is this issue something related to application level ? or Network level ?

Please advice on how to troubleshoot this issue.

Best Regards,




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