The internet service provider sent you a box of things you’re supposed to just plug in to setup your new internet connection and it should just work.
Or maybe you have been connected for some time but now feel, it’s just got so slow! It’s now taking ages for the pages to show up!
You want to setup your new email account.
Or you’re now getting some weird messages when trying to read your emails.
The brand new wifi printer is not playing nice, the sales guy said to just plug it in, turn it on and everybody can simply connect and print to it.
You’ve got data, files on one of the computers and other people need access to them.