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 ca…

Try select all filters and add to your list: server 0.uk.pool.ntp.org server 1.uk.pool.ntp.org server 2.uk.pool.ntp.org server 3.uk.pool.ntp.org (Include ‘word’ server as i posted) I did it for all devices… Not ONLY for hub… Try that…

That’s the content filter. Try something like this: [Screenshot_20250419_010454_Samsung Internet]

make sure to change Port Type from TCP to UDP :slight_smile:

[bbbb] dont let me do without space after server

what router model you got? on my one no option for filtering service

See my comment above. [Screenshot_20250419_012145_Samsung Internet] See if there’s an advanced configuration interface.

I’m stucked now… Dont know how help. Please select all filters (online communication, social network, play to surf, media, etc…) and try add your hub. Hard reset your hub, wait for red/green light > Open smartthings and add your hub.

I think you just need ONE keyword: ntp.org {rather than all of the servers} Is your Hub connected via Wired LAN or WiFi? Do you see it in the list of Connected Devices?

conected thru lan. yes i see all devices

[image] JohnRichard: I think you just need ONE keyword: ntp.org No keyword at all, because that’s the web content filter! When he enters “videotape”, every website with that word gets blocked. What we’re trying to achieve is to block a host/domain name, not website content with a keyword in…

Troubleshooting SmartThings Hub 2018 and Aeotec Hub

Announcements

Andreas_Roedl April 18, 2025, 11:20pm 83

See my comment above.

See if there’s an advanced configuration interface.

Hub v3 impossible to connect

Topic		Replies	Views
Error code 33-504 Devices & Integrations	160	6223	June 16, 2026
Another Smart Hub Connection Issue - Error code 33-504 Devices & Integrations	72	2832	June 21, 2026
I need assistance getting firmware loaded on my Smartthings hub v2 Devices & Integrations hub_firmware_update	38	789	November 1, 2025
Hub v3 impossible to connect Devices & Integrations hubv3	58	3317	June 1, 2026
Help with Setup SmartThings v2 General Discussion troubleshooting	85	2958	May 4, 2026

Troubleshooting SmartThings Hub 2018 and Aeotec Hub

Related topics