[In Omnibus]

Originally Posted by Younicode

Yes, i use php.ini.

I recently switched to use php 7.1 instead of 5.6 and here are the settings:

memory_limit = 128M
max_execution_time = 30


But why a simple login response should require more resources of time and limit?
However, nothing changed by increasing the above limits.

I wish I could find a way to trace the issue and figure out the real source of it.

Thanks.

128MB is nothing by today's script standards. The first thing I would do is increase that value to 512MB and see if that resolves your issue. You can also try increasing the timeout value to 60 but I would try the memory value first.