# \#lwm2m **URL:** https://community.cumulocity.com/tag/lwm2m/23.md [Latest](https://community.cumulocity.com/latest.md) · [Categories](https://community.cumulocity.com/categories.md) · [Tags](https://community.cumulocity.com/tags.md) --- ## [September 25, 2026 - LWM2M service can now restore DTLS connections after restart](https://community.cumulocity.com/t/september-25-2026-lwm2m-service-can-now-restore-dtls-connections-after-restart/15237)
**Author:** [@cumulocity](https://community.cumulocity.com/u/cumulocity)\ **Replies:** 0\ **Last updated:** [October 8, 2026, 7:18am UTC](https://community.cumulocity.com/t/september-25-2026-lwm2m-service-can-now-restore-dtls-connections-after-restart/15237 "2026-10-08T07:18:32Z")
Context Change Type: Feature Product area: Device management & connectivity Component: LWM2M Deployed at: eu.latest.cumulocity.com, apj.cumulocity.com, jp.cumulocity.com, cumulocity.com, us.cumulocity.com ▶ Technical… --- ## [September 3, 2026 - Improved recovery of a timed out LWM2M firmware delivery](https://community.cumulocity.com/t/september-3-2026-improved-recovery-of-a-timed-out-lwm2m-firmware-delivery/15173)
**Author:** [@cumulocity](https://community.cumulocity.com/u/cumulocity)\ **Replies:** 0\ **Last updated:** [September 4, 2026, 7:14am UTC](https://community.cumulocity.com/t/september-3-2026-improved-recovery-of-a-timed-out-lwm2m-firmware-delivery/15173 "2026-09-04T07:14:01Z")
Context Change Type: Improvement Product area: Device management & connectivity Component: LWM2M Deployed at: eu.latest.cumulocity.com, apj.cumulocity.com, jp.cumulocity.com, cumulocity.com, us.cumulocity.com ▶ Techn… --- ## [Error while trying firmware OTA](https://community.cumulocity.com/t/error-while-trying-firmware-ota/14612)
**Author:** [@hariss](https://community.cumulocity.com/u/hariss)\ **Replies:** 22\ **Last updated:** [July 6, 2026, 10:26am UTC](https://community.cumulocity.com/t/error-while-trying-firmware-ota/14612 "2026-07-06T10:26:53Z")
Hello, I am testing the firmware OTA operation in Cumulocity and although the procedure was working ok yesterday, today I get this error: Operation updated: status: "FAILED", failure reason: "Unexpected failure of ope… --- ## [June 17, 2026 - Enhanced access control and permissions for LWM2M service](https://community.cumulocity.com/t/june-17-2026-enhanced-access-control-and-permissions-for-lwm2m-service/14974)
**Author:** [@cumulocity](https://community.cumulocity.com/u/cumulocity)\ **Replies:** 6\ **Last updated:** [June 30, 2026, 12:31pm UTC](https://community.cumulocity.com/t/june-17-2026-enhanced-access-control-and-permissions-for-lwm2m-service/14974 "2026-06-30T12:31:39Z")
Context Change Type: Feature Product area: Device management & connectivity Component: LWM2M Deployed at: eu.latest.cumulocity.com, apj.cumulocity.com, jp.cumulocity.com, cumulocity.com, us.cumulocity.com ▶ Technical… --- ## [DTLS connections fails](https://community.cumulocity.com/t/dtls-connections-fails/14235)
**Author:** [@hariss](https://community.cumulocity.com/u/hariss)\ **Replies:** 10\ **Last updated:** [February 6, 2026, 1:51pm UTC](https://community.cumulocity.com/t/dtls-connections-fails/14235 "2026-02-06T13:51:43Z")
Hello, I am trying to connect to the LWM2M server via DTLS and my modem. I have uploaded the root CA that I have created and established proof of possession through the help of the forum. The device certificates have b… --- ## [December 4, 2025 - Limited number of events produced when receiving data from LWM2M device](https://community.cumulocity.com/t/december-4-2025-limited-number-of-events-produced-when-receiving-data-from-lwm2m-device/14094)
**Author:** [@cumulocity](https://community.cumulocity.com/u/cumulocity)\ **Replies:** 0\ **Last updated:** [December 5, 2025, 7:05am UTC](https://community.cumulocity.com/t/december-4-2025-limited-number-of-events-produced-when-receiving-data-from-lwm2m-device/14094 "2025-12-05T07:05:32Z")
Context Change Type: Improvement Product area: Device management & connectivity Component: LWM2M Deployed at: eu.latest.cumulocity.com, apj.cumulocity.com, jp.cumulocity.com, cumulocity.com, us.cumulocity.com ▶ Techn… --- ## [September 18, 2025 - LWM2M service utilization of Notifications 2.0 tenant-level operation subscription](https://community.cumulocity.com/t/september-18-2025-lwm2m-service-utilization-of-notifications-2-0-tenant-level-operation-subscription/12767)
**Author:** [@cumulocity](https://community.cumulocity.com/u/cumulocity)\ **Replies:** 1\ **Last updated:** [September 19, 2025, 7:17am UTC](https://community.cumulocity.com/t/september-18-2025-lwm2m-service-utilization-of-notifications-2-0-tenant-level-operation-subscription/12767 "2025-09-19T07:17:41Z")
Context Change Type: Feature Product area: Device management & connectivity Component: LWM2M Deployed at: eu.latest.cumulocity.com, apj.cumulocity.com, jp.cumulocity.com, cumulocity.com, us.cumulocity.com ▶ Technical… --- ## [September 19, 2024 - LWM2M service security improvement to ignore packets from certain source ports](https://community.cumulocity.com/t/september-19-2024-lwm2m-service-security-improvement-to-ignore-packets-from-certain-source-ports/11918)
**Author:** [@system](https://community.cumulocity.com/u/system)\ **Replies:** 0\ **Last updated:** [March 17, 2025, 8:52am UTC](https://community.cumulocity.com/t/september-19-2024-lwm2m-service-security-improvement-to-ignore-packets-from-certain-source-ports/11918 "2025-03-17T08:52:37Z")
Context Change Type: Improvement Product area: Device Management & Connectivity Component: LWM2M Deployed at: eu.latest.cumulocity.com, apj.cumulocity.com, jp.cumulocity.com, cumulocity.com, us.cumulocity.com ▶ Techn… --- ## [September 19, 2024 - Disabling the automatic configuration of the required interval for LWM2M devices](https://community.cumulocity.com/t/september-19-2024-disabling-the-automatic-configuration-of-the-required-interval-for-lwm2m-devices/11919)
**Author:** [@system](https://community.cumulocity.com/u/system)\ **Replies:** 0\ **Last updated:** [March 17, 2025, 8:52am UTC](https://community.cumulocity.com/t/september-19-2024-disabling-the-automatic-configuration-of-the-required-interval-for-lwm2m-devices/11919 "2025-03-17T08:52:39Z")
Context Change Type: Improvement Product area: Device Management & Connectivity Component: LWM2M Deployed at: eu.latest.cumulocity.com, apj.cumulocity.com, jp.cumulocity.com, cumulocity.com, us.cumulocity.com ▶ Techn… --- ## [September 19, 2024 - Added documentation for REST-based LWM2M device registration](https://community.cumulocity.com/t/september-19-2024-added-documentation-for-rest-based-lwm2m-device-registration/11920)
**Author:** [@system](https://community.cumulocity.com/u/system)\ **Replies:** 0\ **Last updated:** [March 17, 2025, 8:52am UTC](https://community.cumulocity.com/t/september-19-2024-added-documentation-for-rest-based-lwm2m-device-registration/11920 "2025-03-17T08:52:41Z")
Context Change Type: Improvement Product area: Device Management & Connectivity Component: LWM2M Deployed at: eu.latest.cumulocity.com, apj.cumulocity.com, jp.cumulocity.com, cumulocity.com, us.cumulocity.com ▶ Techn… --- ## [September 19, 2024 - LWM2M agent can now cancel observations using the "GET with observe option" method](https://community.cumulocity.com/t/september-19-2024-lwm2m-agent-can-now-cancel-observations-using-the-get-with-observe-option-method/11921)
**Author:** [@system](https://community.cumulocity.com/u/system)\ **Replies:** 0\ **Last updated:** [March 17, 2025, 8:52am UTC](https://community.cumulocity.com/t/september-19-2024-lwm2m-agent-can-now-cancel-observations-using-the-get-with-observe-option-method/11921 "2025-03-17T08:52:43Z")
Context Change Type: Feature Product area: Device management & connectivity Component: LWM2M Deployed at: eu.latest.cumulocity.com, apj.cumulocity.com, jp.cumulocity.com, cumulocity.com, us.cumulocity.com ▶ Technical… --- ## [September 19, 2024 - LWM2M write operation using "Partial Update" mode is now fully supported](https://community.cumulocity.com/t/september-19-2024-lwm2m-write-operation-using-partial-update-mode-is-now-fully-supported/11922)
**Author:** [@system](https://community.cumulocity.com/u/system)\ **Replies:** 0\ **Last updated:** [March 17, 2025, 8:52am UTC](https://community.cumulocity.com/t/september-19-2024-lwm2m-write-operation-using-partial-update-mode-is-now-fully-supported/11922 "2025-03-17T08:52:45Z")
Context Change Type: Feature Product area: Device management & connectivity Component: LWM2M Deployed at: eu.latest.cumulocity.com, apj.cumulocity.com, jp.cumulocity.com, cumulocity.com, us.cumulocity.com ▶ Technical… --- ## [September 19, 2024 - Custom firmware update URL in LWM2M device configuration is now deprecated](https://community.cumulocity.com/t/september-19-2024-custom-firmware-update-url-in-lwm2m-device-configuration-is-now-deprecated/11923)
**Author:** [@system](https://community.cumulocity.com/u/system)\ **Replies:** 0\ **Last updated:** [March 17, 2025, 8:52am UTC](https://community.cumulocity.com/t/september-19-2024-custom-firmware-update-url-in-lwm2m-device-configuration-is-now-deprecated/11923 "2025-03-17T08:52:47Z")
Context Change Type: Announcement Product area: Device management & connectivity Component: LWM2M Deployed at: eu.latest.cumulocity.com, apj.cumulocity.com, jp.cumulocity.com, cumulocity.com, us.cumulocity.com ▶ Tech… --- ## [October 31, 2024 - Allowing LWM2M device to send empty payload without content-type data](https://community.cumulocity.com/t/october-31-2024-allowing-lwm2m-device-to-send-empty-payload-without-content-type-data/11941)
**Author:** [@system](https://community.cumulocity.com/u/system)\ **Replies:** 0\ **Last updated:** [March 17, 2025, 8:53am UTC](https://community.cumulocity.com/t/october-31-2024-allowing-lwm2m-device-to-send-empty-payload-without-content-type-data/11941 "2025-03-17T08:53:23Z")
Context Change Type: Improvement Product area: Device Management & Connectivity Component: LWM2M Deployed at: eu.latest.cumulocity.com, apj.cumulocity.com, jp.cumulocity.com, cumulocity.com, us.cumulocity.com ▶ Techn… --- ## [October 31, 2024 - LWM2M location data handling has been improved](https://community.cumulocity.com/t/october-31-2024-lwm2m-location-data-handling-has-been-improved/11942)
**Author:** [@system](https://community.cumulocity.com/u/system)\ **Replies:** 0\ **Last updated:** [March 17, 2025, 8:53am UTC](https://community.cumulocity.com/t/october-31-2024-lwm2m-location-data-handling-has-been-improved/11942 "2025-03-17T08:53:25Z")
Context Change Type: Improvement Product area: Device Management & Connectivity Component: LWM2M Deployed at: eu.latest.cumulocity.com, apj.cumulocity.com, jp.cumulocity.com, cumulocity.com, us.cumulocity.com ▶ Techn… --- ## [October 31, 2024 - Updated LWM2M bulk registration templates](https://community.cumulocity.com/t/october-31-2024-updated-lwm2m-bulk-registration-templates/11943)
**Author:** [@system](https://community.cumulocity.com/u/system)\ **Replies:** 0\ **Last updated:** [March 17, 2025, 8:53am UTC](https://community.cumulocity.com/t/october-31-2024-updated-lwm2m-bulk-registration-templates/11943 "2025-03-17T08:53:27Z")
Context Change Type: Improvement Product area: Device management & connectivity Component: LWM2M Deployed at: eu.latest.cumulocity.com, apj.cumulocity.com, jp.cumulocity.com, cumulocity.com, us.cumulocity.com ▶ Techn… --- ## [December 19, 2024 - LWM2M Opaque type serialization to byte array is now deprecated](https://community.cumulocity.com/t/december-19-2024-lwm2m-opaque-type-serialization-to-byte-array-is-now-deprecated/11987)
**Author:** [@system](https://community.cumulocity.com/u/system)\ **Replies:** 0\ **Last updated:** [March 17, 2025, 8:54am UTC](https://community.cumulocity.com/t/december-19-2024-lwm2m-opaque-type-serialization-to-byte-array-is-now-deprecated/11987 "2025-03-17T08:54:55Z")
Context Change Type: Announcement Product area: Device management & connectivity Component: LWM2M Deployed at: eu.latest.cumulocity.com, apj.cumulocity.com, jp.cumulocity.com, cumulocity.com, us.cumulocity.com ▶ Tech… --- ## [December 19, 2024 - LWM2M device logging level configuration](https://community.cumulocity.com/t/december-19-2024-lwm2m-device-logging-level-configuration/11988)
**Author:** [@system](https://community.cumulocity.com/u/system)\ **Replies:** 0\ **Last updated:** [March 17, 2025, 8:54am UTC](https://community.cumulocity.com/t/december-19-2024-lwm2m-device-logging-level-configuration/11988 "2025-03-17T08:54:57Z")
Context Change Type: Feature Product area: Device management & connectivity Component: LWM2M Deployed at: eu.latest.cumulocity.com, apj.cumulocity.com, jp.cumulocity.com, cumulocity.com, us.cumulocity.com ▶ Technical… --- ## [January 16, 2025 - Preventing execution of operations on resource instance level for LWM2M 1.0 devices](https://community.cumulocity.com/t/january-16-2025-preventing-execution-of-operations-on-resource-instance-level-for-lwm2m-1-0-devices/12004)
**Author:** [@system](https://community.cumulocity.com/u/system)\ **Replies:** 0\ **Last updated:** [March 17, 2025, 8:55am UTC](https://community.cumulocity.com/t/january-16-2025-preventing-execution-of-operations-on-resource-instance-level-for-lwm2m-1-0-devices/12004 "2025-03-17T08:55:29Z")
Context Change Type: Improvement Product area: Device Management & Connectivity Component: LWM2M Deployed at: eu.latest.cumulocity.com, apj.cumulocity.com, jp.cumulocity.com, cumulocity.com, us.cumulocity.com ▶ Techn… --- ## [April 24, 2025 - Improved LWM2M device request timeout settings](https://community.cumulocity.com/t/april-24-2025-improved-lwm2m-device-request-timeout-settings/12203)
**Author:** [@system](https://community.cumulocity.com/u/system)\ **Replies:** 0\ **Last updated:** [April 26, 2025, 7:03am UTC](https://community.cumulocity.com/t/april-24-2025-improved-lwm2m-device-request-timeout-settings/12203 "2025-04-26T07:03:30Z")
Context Change Type: Improvement Product area: Device management & connectivity Component: LWM2M Deployed at: eu.latest.cumulocity.com, apj.cumulocity.com, jp.cumulocity.com, cumulocity.com, us.cumulocity.com ▶ Techn… --- ## [April 24, 2025 - Simplified logging event levels in LWM2M device configuration](https://community.cumulocity.com/t/april-24-2025-simplified-logging-event-levels-in-lwm2m-device-configuration/12204)
**Author:** [@system](https://community.cumulocity.com/u/system)\ **Replies:** 0\ **Last updated:** [April 26, 2025, 7:03am UTC](https://community.cumulocity.com/t/april-24-2025-simplified-logging-event-levels-in-lwm2m-device-configuration/12204 "2025-04-26T07:03:32Z")
Context Change Type: Improvement Product area: Device management & connectivity Component: LWM2M Deployed at: eu.latest.cumulocity.com, apj.cumulocity.com, jp.cumulocity.com, cumulocity.com, us.cumulocity.com ▶ Techn… --- ## [June 19, 2025 - Removed Redundant "LWM2M Device Send" event in VERBOSE logging](https://community.cumulocity.com/t/june-19-2025-removed-redundant-lwm2m-device-send-event-in-verbose-logging/12385)
**Author:** [@cumulocity](https://community.cumulocity.com/u/cumulocity)\ **Replies:** 0\ **Last updated:** [June 25, 2025, 7:04am UTC](https://community.cumulocity.com/t/june-19-2025-removed-redundant-lwm2m-device-send-event-in-verbose-logging/12385 "2025-06-25T07:04:31Z")
Context Change Type: Improvement Product area: Device management & connectivity Component: LWM2M Deployed at: eu.latest.cumulocity.com, apj.cumulocity.com, jp.cumulocity.com, cumulocity.com, us.cumulocity.com ▶ Techn… --- ## [December 6, 2023 - Improved performance of migration operation](https://community.cumulocity.com/t/december-6-2023-improved-performance-of-migration-operation/11743)
**Author:** [@system](https://community.cumulocity.com/u/system)\ **Replies:** 0\ **Last updated:** [March 17, 2025, 8:46am UTC](https://community.cumulocity.com/t/december-6-2023-improved-performance-of-migration-operation/11743 "2025-03-17T08:46:46Z")
Context Change Type: Improvement Product area: Device management & connectivity Component: LWM2M Deployed at: eu.latest.cumulocity.com, apj.cumulocity.com, jp.cumulocity.com, cumulocity.com, us.cumulocity.com ▶ Techn… --- ## [December 6, 2023 - New configuration flag in LWM2M device registration settings for firmware reset](https://community.cumulocity.com/t/december-6-2023-new-configuration-flag-in-lwm2m-device-registration-settings-for-firmware-reset/11744)
**Author:** [@system](https://community.cumulocity.com/u/system)\ **Replies:** 0\ **Last updated:** [March 17, 2025, 8:46am UTC](https://community.cumulocity.com/t/december-6-2023-new-configuration-flag-in-lwm2m-device-registration-settings-for-firmware-reset/11744 "2025-03-17T08:46:48Z")
Context Change Type: Improvement Product area: Device management & connectivity Component: LWM2M Deployed at: eu.latest.cumulocity.com, apj.cumulocity.com, jp.cumulocity.com, cumulocity.com, us.cumulocity.com ▶ Techn… --- ## [December 6, 2023 - X.509 security mode support](https://community.cumulocity.com/t/december-6-2023-x-509-security-mode-support/11749)
**Author:** [@system](https://community.cumulocity.com/u/system)\ **Replies:** 0\ **Last updated:** [March 17, 2025, 8:46am UTC](https://community.cumulocity.com/t/december-6-2023-x-509-security-mode-support/11749 "2025-03-17T08:46:58Z")
Context Change Type: Feature Product area: Device management & connectivity Component: LWM2M Deployed at: eu.latest.cumulocity.com, apj.cumulocity.com, jp.cumulocity.com, cumulocity.com, us.cumulocity.com ▶ Technical… --- ## [December 6, 2023 - New LWM2M configuration tab](https://community.cumulocity.com/t/december-6-2023-new-lwm2m-configuration-tab/11751)
**Author:** [@system](https://community.cumulocity.com/u/system)\ **Replies:** 0\ **Last updated:** [March 17, 2025, 8:47am UTC](https://community.cumulocity.com/t/december-6-2023-new-lwm2m-configuration-tab/11751 "2025-03-17T08:47:02Z")
Context Change Type: Feature Product area: Device management & connectivity Component: LWM2M Deployed at: eu.latest.cumulocity.com, apj.cumulocity.com, jp.cumulocity.com, cumulocity.com, us.cumulocity.com ▶ Technical… --- ## [December 6, 2023 - New shell commands](https://community.cumulocity.com/t/december-6-2023-new-shell-commands/11752)
**Author:** [@system](https://community.cumulocity.com/u/system)\ **Replies:** 0\ **Last updated:** [March 17, 2025, 8:47am UTC](https://community.cumulocity.com/t/december-6-2023-new-shell-commands/11752 "2025-03-17T08:47:04Z")
Context Change Type: Improvement Product area: Device management & connectivity Component: LWM2M Deployed at: eu.latest.cumulocity.com, apj.cumulocity.com, jp.cumulocity.com, cumulocity.com, us.cumulocity.com ▶ Techn… --- ## [December 20, 2023 - New toggle for switching off empty data in LWM2M device protocol](https://community.cumulocity.com/t/december-20-2023-new-toggle-for-switching-off-empty-data-in-lwm2m-device-protocol/11823)
**Author:** [@system](https://community.cumulocity.com/u/system)\ **Replies:** 0\ **Last updated:** [March 17, 2025, 8:49am UTC](https://community.cumulocity.com/t/december-20-2023-new-toggle-for-switching-off-empty-data-in-lwm2m-device-protocol/11823 "2025-03-17T08:49:26Z")
Context Change Type: Feature Product area: Device management & connectivity Component: LWM2M Deployed at: eu.latest.cumulocity.com, apj.cumulocity.com, jp.cumulocity.com, cumulocity.com, us.cumulocity.com ▶ Technical… --- ## [February 6, 2024 - Option to disable LWM2M object default actions](https://community.cumulocity.com/t/february-6-2024-option-to-disable-lwm2m-object-default-actions/11824)
**Author:** [@system](https://community.cumulocity.com/u/system)\ **Replies:** 0\ **Last updated:** [March 17, 2025, 8:49am UTC](https://community.cumulocity.com/t/february-6-2024-option-to-disable-lwm2m-object-default-actions/11824 "2025-03-17T08:49:28Z")
Context Change Type: Feature Product area: Device management & connectivity Component: LWM2M Deployed at: eu.latest.cumulocity.com, apj.cumulocity.com, jp.cumulocity.com, cumulocity.com, us.cumulocity.com ▶ Technical… --- ## [February 6, 2024 - LWM2M Time-to-Live duration for device operation realtime subscription](https://community.cumulocity.com/t/february-6-2024-lwm2m-time-to-live-duration-for-device-operation-realtime-subscription/11825)
**Author:** [@system](https://community.cumulocity.com/u/system)\ **Replies:** 0\ **Last updated:** [March 17, 2025, 8:49am UTC](https://community.cumulocity.com/t/february-6-2024-lwm2m-time-to-live-duration-for-device-operation-realtime-subscription/11825 "2025-03-17T08:49:30Z")
Context Change Type: Feature Product area: Device management & connectivity Component: LWM2M Deployed at: eu.latest.cumulocity.com, apj.cumulocity.com, jp.cumulocity.com, cumulocity.com, us.cumulocity.com ▶ Technical… [Next page](https://community.cumulocity.com/tag/lwm2m/23.md?match_all_tags=true&page=1&tags%5B%5D=lwm2m)