What is the problem?
I can reach the start site of octoprint where I have to type in my user name and password but I continue to get following message: Loading failed. Socket connection failed.... etc etc
What did you already try to solve it?
I installed a fixed ip in my network, I have configured router correctly for dyn dns.
serial.log or output on terminal tab at a minimum, browser error console if UI issue ... no logs, no support!)
Additional information about your setup (OctoPrint version, OctoPi version, printer, firmware, browser, operating system, ... as much data as possible)