Mender-Client failed to update deployment status

General Discussions
1

Hi I’ve hosted a mender server on aws ec2 which seems to function properly, and i have a ubuntu24 machine on which i installed mender client(v5) through apt install mender-client4. The client can be properly registered to my mender server, but when i tried to deploy an artifact, the client reported the below error


Jun 30 08:01:14 konnexthome mender-update[810890]: record_id=18 severity=info time="2025-Jun-30 08:01:14.570687" name="Global" msg="Sending status update to server"
Jun 30 08:01:14 konnexthome mender-update[810890]: record_id=19 severity=error time="2025-Jun-30 08:01:14.860295" name="Global" msg="Request to push status data failed: PUT http://127.0.0.1:39193/api/devices/v1/deployments/device/deployments/d65af14a-681c-443f-9868-ceba3b4864cd/status: "
Jun 30 08:01:14 konnexthome mender-update[810890]: record_id=20 severity=error time="2025-Jun-30 08:01:14.860475" name="Global" msg="Could not send deployment status: bad version: PUT http://127.0.0.1:39193/api/devices/v1/deployments/device/deployments/d65af14a-681c-443f-9868-ceba3b4864cd/status: "
Jun 30 08:01:15 konnexthome mender-update[810890]: record_id=21 severity=info time="2025-Jun-30 08:01:15.142817" name="Global" msg="Installing artifact..."
Jun 30 08:01:15 konnexthome mender-update[810890]: record_id=22 severity=info time="2025-Jun-30 08:01:15.197851" name="Global" msg="Sending status update to server"
Jun 30 08:01:15 konnexthome mender-update[810890]: record_id=23 severity=error time="2025-Jun-30 08:01:15.200322" name="Global" msg="Request to push status data failed: PUT http://127.0.0.1:39193/api/devices/v1/deployments/device/deployments/d65af14a-681c-443f-9868-ceba3b4864cd/status: "
Jun 30 08:01:15 konnexthome mender-update[810890]: record_id=24 severity=error time="2025-Jun-30 08:01:15.200493" name="Global" msg="Could not send deployment status: bad version: PUT http://127.0.0.1:39193/api/devices/v1/deployments/device/deployments/d65af14a-681c-443f-9868-ceba3b4864cd/status: "

I’ve tried to use the same client installation process and artifact on the hosted mender, and the artifact can be properly deployed without reporting this error. The server version is update-to-date(5.0.1), and it is installed using the k3s process. I’m kinda stuck on this, could you please kindly provide me with some advicie in regards to this issue? Really appreciate that.

2

I tried to downgrade my mender client to v3.5 and the BAD VERSION issue didn’t occur. I could see related issues in the release notes ( * Fix download failure to always do a proper cancellation and cleanup of internal HTTP stuctures to avoid breaking future HTTP requests. Fixes bad_version error. (MEN-7810, is it possible that the issue still exists?