base_url() returning ip instead of url in 3.1.3

I'm having a weird issue where base_url() is returning the IP address of the server instead of the actual URL. I have the site in a folder on the server, similar to another site that I have that's running codeigniter 3.0.6.

The older site is https://www.klccomputing.com/tracker and is running 3.0.6 and works just fine.
The newer site is https://www.klccomputing.com/icingOnTheCake and is running 3.1.3, but returns the IP.

Is there some sort of configuration change that would cause this difference?