Rephrase Internet connection settings

Originally created by @alant on #12077 (Redmine)

In the explanation about the internet connection settings (choices) I would be segregate the last alternative - and for my opinion it be good when it will be formulated with the word “Alternatively, …..” as the start word - and it will be good to place this last description on the new, different line.

Parent Task: #11643 (closed)