I can't turn off the "Cache pages for anonymous users " cache option.
I uncheck it and then hit save as usual but it stays on. Is there some sort of module conflict causing this or possibly an issue with the database?
There might be issue of below module or other which would be having issue of cookie stored causing the issue for not caching the page.
Recently read has performance issue stated above.
Commenting out or deleting unused memcache and Varnish code within my settings.php file solved the problem.