None of the caching methods are working

I'm using IPS 4.2.7 under nginx with PHP 7.1.5, under Windows (8.1).

My problem is I installed memcache & memcached correctly (memcache extension is added to php.ini, correct dll downloaded, memcached is running as a service)but I can't activate it in IPS. I have the memcached running on the default port (11211).

By the way I tried it under apache2 too, but it doesn't worked.


Please help me how could I make it working.