@Sebastian-Roth Thank you for all your help. Based off of what you found in your previous post, it looks like our WebFilter is blocking the connection. I was able to get to these sites because I am an authenticated user but the Ubuntu server is unauthenticated. I changed it to be able to allow the unauthenticated connection and now it is installing with zero issues. Thank you again for your help in finding out what the issue was.
@george1421 Thank you for your help