On the night of 1/5/2026, my hub Smartthings hub D052A81720AE0001 stopped communicating with Z-wave devices. I noticed the status LED light was no longer green and the hub network lights were not lit. I disconnected the network cable and reinsurted it. The network connection lights began showing …

Smartthings hub stopped connecting to Z-wave devices

jkp January 7, 2026, 9:38pm 2

1 Like

Topic		Replies	Views
SmartThings Hub (v2) has suddenly lost the ability to control most devices Connected Things	7	318	June 10, 2025
All Zwave devices stopped connecting a few months ago tried everything Devices & Integrations	8	410	August 4, 2023
Multiple Zwave Devices Went Offline today at Once (Jan 2024) General Discussion troubleshooting	8	452	January 29, 2024
All Z-wave devices just stopped working Devices & Integrations	177	2365	January 16, 2026
Having trouble connecting Smartthings V3 hub to any Z Wave item Devices & Integrations	7	196	November 30, 2025