Since the movie takes place in Poland during the 80s and the country did not have the internet until the 90s, network communication cannot exist. However, the movie does have a scene that explores the limitations of communication with computational technology.
In the movie Pawel creates a program that tells him what his mother is doing. For example, the program can calculate whether or not his mother is asleep based on what time zone she is sleeping in. However, when Pawel asks the program what she's dreaming about, it answers, "I don't know." He wishes he can use his father's computer because he believes it could answer that question. Pawel wonders if a computer could explain the meaning of life or whether he could tell if a god could exist. His aunt responds to his question by hugging him and asking what he feels. Pawel responds, "I love you". The aunt tells him that his response and their connection is the answer to his questions.
As we can infer from the movie, Pawel's mother is living in another country and is unable to be with Pawel. The irony of the situation is that Pawel is surrounded by some of the most advanced technology at the time but lacks the means to ask these simple questions to his mother. Additionally, his computer can extract information about location, weather, etc. but not how his mother feels about him. A modern analogy to this is seeing a happy photo of your friend but not truly knowing how that person is feeling.
Pawel views this limitation as something that can solved with technological advancement. His aunt, Irene, believes that concepts like love, purpose, and community cannot be easily quantified and reduced to data. Her answers to Pawel questions is very physical and emotional, the opposite of Kristyof worldview. However, it solves the doubt Pawel carries in that scene because what Irene communicated wasn't a logical certainty. It was a wordless, emotional certainity that answers Pawel's real question: does my mother love me, will the people I care about stay?
The movie attempts in this scene to show the superficial relationship between people and technology, how computational power is not equivalent to it's power to find and solve deeper questions.