I have the following error, when I try to execute a request on my PHP/Laravel/Apache server which takes a long time to execute. As far as I know I am not running a proxy...? I can't seem to find a way to resolve this error. I also can't find anything about this error in the Apache logs. My PHP code is just running a large request against Amazon's MWS web service, but I can't tell where the error is originating from. The error seems to occur after 300 seconds, and I have tried adjusting the Timeout variable in the apache.conf but it didn't change anything.
Proxy Error
The proxy server received an invalid response from an upstream server.
The proxy server could not handle the request GET /api/test.
Reason: Error reading from remote server