wp-login.php not redirecting to wp-admin.php

I don’t think there is a wp-admin.php file. At least I didn’t see it.
WP does the right thing: it redirects you to the wp-admin folder and in this case it should display/show the index file of that directory.

Your problem is that index.php is not a valid index file. Talk to your host and tell them to make index.php a valid index file. That’s all.

Are you sure this is the only possible cause? Because it was working.

The “Directory Listing Denied error” clearly points toward this: it is a problem with your server settings!

Sorry, I’ve been AFK for a few days. I’ve allowed directory listing because my server is taking too long to respond to me asking them to make index.php valid. I can just select index.php manually now. Thanks for your help.

I had a similar INSTALL problem, whereby after typing in “admin” and then my password it would bring me to folder wp-admin and browser would display http error. Well, I finally figured out that I did not have index.php as an allowed Directory Index with my hosting company. You see I thought as others that it was my Windows Server problem ,as some said WordPress prefers Apache. The only directory index I had was index.asp and index.htm so by a adding index.php..,Voila I have WordPress Dashboard in view and now I am ready to create a great blog.