A student from the Moscow State University was sentenced to 10 days in jail in the Russian capital after renaming his wi-fi network to a pro-Ukraine slogan.
A court in Moscow found the student guilty of displaying "symbols of extremist organisations" on Thursday, reported BBC.
The student had titled the wi-fi network "Slava Ukrani!" which means "Glory to Ukraine!", the report added.
The student's arrest came on Wednesday morning after a police officer had reported the network name to authorities.
As per court documents, the student's room was inspected by the officers within the university's student accommodation and found his personal computers and a wi-fi router.
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According to the report, the court stated that he had used the network to "promote the slogan 'Slava Ukrani!' to an unlimited number of users within wi-fi range."
The router has been confiscated.
"Slava Ukraini" has become a rallying cry for supporters of Ukraine, regularly chanted during protests against Russia's full-scale invasion, launched by Moscow on February 24, 2022.
The student was found guilty of "public demonstration of Nazi symbolism... or symbols of extremist organisations".
Russian President Vladimir Putin has maintained a baseless claim about a "neo-Nazi regime" in Ukraine and used it to justify his invasion.
The action taken against the student comes latest in a series of measures against ordinary Russians who have been punished for their comments, or actions, about the war.
Thousands have been handed prison terms or fines for criticising the invasion or supporting Ukraine since the start of the war.
Last month, hundreds of people were detained for simply laying flowers in memory of opposition leader Alexei Navalny, who died under suspicious circumstances in an Arctic Circle prison.
The conflict is not even allowed to be called a "war" in Russia. It must be referred to as a "special military operation".
As per a report by Amnesty International, over 21,000 people were targeted by Russia's "repressive laws" last year used to "crackdown on anti-war activists".