Getting error in console : Failed to load resource: net::ERR_CONNECTION_RESET

Solution 1:

I think you are using chrome. The problem is the certificate mismatch or the expiration of the certificate.Check your certificate properly.

Just visit here for more information.

Solution 2:

I'm using chrome too and facing same problem on my localhost. I did a lot of things like clear using CCleaner and restart OS. But my problem was solved with clearing cookie. In order to clear cookie:

1. Go to Chrome settings > Privacy > Content Settings > Cookie > All cookie and Site Data > Delete domain problem

OR

2. Right Click > Inspect Element > Tab Resources > Cookie (Left Menu) > Select domain > Delete All cookie One By One (Right Menu)

Solution 3:

I had a similar issue using Apache 2.4 and PHP 7.

My client sent a lot of requests when refreshing (hard reloading) my application page in the browser and every time some of the last requests resulted in this error in console:

GET http://example.com/api/v1/my/resource net::ERR_CONNECTION_RESET

It turned out that my client was reaching the maximum amount of threads that was allowed. The threads exceeding this configured ceiling are simply not handled by Apache at all resulting in the connection reset error response.

The amount of threads can be easily raised by setting the ThreadsPerChild value for the module in question.
The easiest way to make such change is to uncomment the Server-pool management config file conf/extra/httpd-mpm.conf and then editing the preset values in the file to desired values.

1) Uncomment the Server-pool management file

# Server-pool management (MPM specific)
Include conf/extra/httpd-mpm.conf

2) Open and edit the file conf/extra/httpd-mpm.conf and raise the amount of threads

In my case I had to change the threads for the mpm_winnt_module:

# raised the amount of threads for mpm_winnt_module to 250
<IfModule mpm_winnt_module>
    ThreadsPerChild        250
    MaxConnectionsPerChild   0
</IfModule>

A comprehensive explanation on these Server-pool management configuration settings can be found in this post on StackOverflow.