The select runs at the database, so there is the information stored:
mysql> select * from wordpresswp_options where option_name = ‘siteurl’;
I’ve changed the URL via Web-backend:
Settings->WordpressURL
By doing so, I’m sure the there are no side-effects. Possibly you can change it also direct in the database. However, I would not recommend it.
I had the same issue: One of my WordPress installations got a redirect loop after auto-update to 4.4.1. Sad: It was the start-page :-(. My tree other WP installations had no problem with this update.
So I asked my webhoster, and he came up with a solution for my problem: I had used upper case letters in the URL-Config in WP:
select * from wordpresswp_options where option_name = ‘siteurl’;
After making them all lower case, the redirect loop was gone.
It seems, that the older versions had no problem with this. My other WP-installation had no problem because there I’ve been wise enough to avoid upper case letters in the URL 🙂
