The report — obtained by the London-based NBC News Verification Unit — says there was no cellphone activity in a high-security portion of the Wuhan Institute of Virology from Oct. 7 through Oct. 24, 2019, and that there may have been a “hazardous event” sometime between Oct. 6 and Oct. 11.
https://www.nationalreview.com/corner/did-the-cell-phones-in-the-wuhan-institute-of-virology-go-dark-for-17-days/