The country found itself offline for hours on 28 March after cables linking Georgia to Armenia were damaged.
A Georgian interior ministry spokesman said a 75-year-old woman had admitted damaging fibre-optic cables while scavenging for copper.
She has been charged and reportedly faces up to three years in prison.
"Taking into account her advancing years, she has been released pending the end of the investigation and subsequent trial," spokesman Zura Gvenetadze told AFP news agency.
She had been searching for copper in the Georgian village of Ksani.
The cables, owned by the Georgian Railway Telecom company, serve eastern Georgia, Armenia and Azerbaijan.
All three wholesale internet providers in Armenia - ArmenTel, FiberNet Communication and GNC-Alfa - were unable to provide their usual service on the evening of 28 March, Armenia's Arka news agency reported.
Services were eventually restored after midnight.