I have an API that is used to fetch the data from an external call. The problem is when I am trying to send almost 800 records JSON it shows URL not found but if I reduce the size to 300 it starts working. I have increased the memory limit, execution time,post_max size, etc but nothing is working.
One more thing is when I am trying to send large data from within the local network through postman it is working but when I am using public IP which is pointing to our private IP it shows URL not found with large data but with small data it also working.
One error which I am getting in the apache error log
[fcgid:warn] [pid 5908:tid 1364] (OS 10054)An existing connection was forcibly closed by the remote host. : [client 172.16.100.100:44664] mod_fcgid: can't get data from http client