I am having a very common problem which it seems that all the available solutions found are not working.
We have a LAMP server which is receiving high amount of traf
The connection coud be terminating at several places:
I would increase all of these, and see if it still persists. But you will have to bounce apache for the changes inside of php.ini to take affect.
These are also affected by what kind of connection speed the end user has, if it is failing for certain users, it's because their connection is slower than others, and their connection with the server is terminating.