Disclaimer: I have already read and implemented the solution found in the ExpressionEngine 2.8.1 user guide.
My Problem: Control Panel is unstyled when viewed from any computer other than the server.
My Setup: Turned an old computer into a DIY server in my apartment, running Ubuntu Server. LAMP. Using the free core version of Expression Engine with the idea that I will create a proof of concept, then encourage my employer to buy it for the company's website needs.
Getting to the Issue: The server works. Expression Engine installed successfully and I can create channels, groups, etc. When I access the Control Panel from the server computer (in my apartment) everything shows up fine. But when I access it over the internet at work the Control Panel becomes unstyled. No CSS, no theme, just a lot of unstyled text.
Have You Tried Turning it Off and On Again: As mentioned, I already tried the suggested solution of moving cp_theme folder into the system folder, then restarting the server. Nothing changed. I have searched all over for any other solutions and have come up empty.
Please help me! How do I get the css and themeing back to my Control Panel so I can work on the website whilst away from home?
Thank you very much for your time and assistance!