Resolved · lasted 4 h
ADT outage on September 17
Reports for ADT jumped to 466 an hour and stayed high for 4 h.
- Started
- 8:00 PM
- September 17, 2026 · UTC
- Back to normal
- 12:00 AM
- 4 h later
- Peak
- 466/hr
- 155× normal
- ADT’s incident
- —
- Nothing posted
Reports during the outage
6:00 PM1:50 AM UTC
What people said
- Nic9:12 PM
"Cellular failure" on panel and app won't load
- Jason Sandhaus9:19 PM
Cellular activity error
- TC9:23 PM
Security System and Website down (San Diego)
8 comments during the outage
Is ADT down right now?
Live status, today’s reports and other past outages.