nayelyz
(SmartThings Developer Support)
December 16, 2025, 4:29pm
2
Hi, @mndb369
If it “wasn’t claimed by March 2, 2025”, it might experience an issue with the certificate to connect to the platform, but blocking the NTP port should help.
Only those who were unable to follow those steps experienced problems.
Here’s the thread about that:
Use this guide for troubleshooting help with onboarding your Hub. We also include Hub replacement information if necessary.
Overview
When encountering the 33-504 error while claiming a SmartThings Hub 2018 (IM6001-V3P) or an Aeotec SmartThings Hub, the following root causes may apply:
Your hub cannot access the internet over Ethernet or Wi-Fi connections
Hubs manufactured before April 2024 may not have received firmware updates after production. If a Hub has not been claimed by March 2, 2025, it may not have been updated before purchase or activation.
The following steps could be attempted to claim your hub successfully.
Verify Internet Connectivity:
Please verify the following:
Your hub can connect to the internet
If claiming over Ethernet, the LAN is internet-connected
If claimin…