Myself and some friends play mainly on a server hosted on a box I run at home.
Instead of being able to simply connect to "<my.dynamicDNS.net>:<port>", we all have to instead type in my IP address, which invariably changes from time to time. I have a dynamic DNS URL which obviously would be far simpler to enter instead!
So please let us type in a URL instead of only an IP address to connect to.
Furthermore, when first entering the game, and even if we come out of the game, we have to enter the whole address again, so please simply just remember and default the last CONNECTION address entry, so all you have to do is press the connect button...