Hi All, I’ve seen quite a few posts from people having issues adding their Smart Hub in SmartThings. I have a brand new IM6001-V3P06 purchased from Bunnings yesterday and cannot add it: Device is detected when SmartThings is open on my Samsung s.24 Ultra (but have also tried adding it manually) I…

I have tried to download the file. It does not download. I am still getting the 33-504 error code. I have a LAN plugged into the device. Please let me know what I need to do. Thanks

Hi, I have 2 Smartthings hubs which get this same error.33-504. Many attempts at factory resets, and adding. These hubs were previously working and I moved to a place for 5 years, and they were off line. Moved back and have attempted to use them, but can’t get them added. .Factory reset gets me to…

block port 123 udp on your Router reset the hub and onboard the hub to the app unblock port 123 udp if you don’t have the ability to block port 123 udp than block the domain ntp.org and follow the same steps above. Many Routers have a parental control option that allows you to block domai…

Hi, could you help me, i have the same problem, i have a Samsung smarthings Hub V3 IM6001-V3P01, i did everthing and got the 33-504 error. I have the log of the hub right now

You can send the logs to build@smartthings.com :slight_smile:

Good afternoon. I am having the same issue as the above poster. Happy to supply details of my device. I have also blocked NTP, but this did not help. Any advice would be very useful. Thanks Ian

Could you please share the Hub logs with us by following the steps below? Insert Fat32-formatted USB drive to the USB slot on the back of the hub. Press and release the reset hole on the back of the hub. Hub LED will blink magenta while copying logs. After the Hub LED returns to normal from magent…

Afternoon. Thank you for your prompt response. As requested I have the log file on USB stick, but of course I cannot upload files here. Please send DM and I shall respond ASAP. Thanks Ian

I have the same issue. I have sent the log file to the mail. It gets stuck on ‘Connecting to device‘ for multiple minutes and then I get an error 33-504

I am having the same issue, as I moved 3 years ago and tried to set up my hub weeks ago with the same issue. Please help, as I tried all the troubleshooting with no success.

Another Smart Hub Connection Issue - Error code 33-504

Devices & Integrations

jkp April 22, 2026, 8:27pm 70

Follow the troubleshooting guide in the following thread to update the security certificate on the hub. It can be found in this thread: Troubleshooting SmartThings Hub 2018 and Aeotec Hub

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Another Smart Hub Connection Issue - Error code 33-504

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