What is connectivity?
Connectivity is getting two unlike systems to talk to each in a way that will allow you to perform the function you need to perform
What kind of connectivity issues can happen in relationship to Print?
There are a number of them. From Improper configuration to not having the correct communications protocol but the most common would be an error in configuration.
How do I resolve a connectivity issue?
Connectivity issues are tricky but if everything looks right and you are still not getting a connection the first place you’re going to want to look will be any Firewall or Security software to make sure that the specific port being used isn’t blocked. After that you’ll want to look at permissions since most Host level jobs will not have a network ID attached to them they may be getting blocked for that reason.