404 error from codeigniter when hosted to server (tried every possible conditions)

Are you trying to use any special routes?

Please show us the code for the controller and view of one such page.

index is working but login is showing 404 error

In the welcome() function the last line is

PHP Code:

$this->load->view('loginn"); 


Should "loginn" be "login"? If it should be "login" that may be the source of the 404.

In the future please copy and paste all code into the message editor, then use the PHP button in the toolbar to make it as PHP code. It's less work for everybody in the long run. Thanks.