Oct <var data-var='date'> 1</var>, <var data-var='time'>10:30</var> PDT Completed - The scheduled maintenance has been completed. Oct <var data-var='date'> 1</var>, <var data-var='time'>07:30</var> PDT In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Sep <var data-var='date'>30</var>, <var data-var='time'>13:14</var> PDT Scheduled - One of our upstream carrier partners will be performing emergency network maintenance that may affect cellular connectivity for Particle devices using EtherSIM in the United States. Scope: Only Particle SKUs that rely on EtherSIM for cellular connectivity are potentially affected. During the maintenance window, affected devices may experience intermittent cellular data connectivity, including brief disconnections, delayed cloud messages, or temporary difficulty re-establishing a session. Devices are expected to reconnect automatically once service is restored, and no action is required from customers. Our team, together with our carrier partner, will monitor the maintenance closely to minimize impact. We will post updates here if anything changes.

Emergency Network Maintenance – EtherSIM Cellular Connectivity (US)

Sep <var data-var='date'>21</var>, <var data-var='time'>14:45</var> PDT Resolved - This incident has been resolved. Sep <var data-var='date'>21</var>, <var data-var='time'>14:03</var> PDT Monitoring - A fix has been deployed and we're monitoring the results. Tachyon connectivity is stabilizing across affected regions. We'll continue to watch closely before marking this resolved. Sep <var data-var='date'>21</var>, <var data-var='time'>11:28</var> PDT Identified - We've identified the source of the infrastructure issue impacting Tachyon devices. Our engineering team is actively working on a fix and will provide an update as soon as it's deployed. Sep <var data-var='date'>21</var>, <var data-var='time'>11:07</var> PDT Investigating - We are investigating an infrastructure issue affecting Tachyon devices. Some devices may experience delayed or intermittent connections to the Device Cloud. Other device types are not affected.

Infrastructure issue affecting Tachyon devices

Sep <var data-var='date'> 2</var>, <var data-var='time'>11:00</var> PDT Completed - The scheduled maintenance has been completed. Sep <var data-var='date'> 2</var>, <var data-var='time'>10:00</var> PDT In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Sep <var data-var='date'> 1</var>, <var data-var='time'>10:26</var> PDT Scheduled - Affected component: Tachyon device connectivity (SKUs: TACH4NA, TACH8NA, TACH8ROW) Type: Scheduled Maintenance Duration: 1 hour Start: September 2, 2026, 10:00 AM PDT End (estimated): September 2, 2026, 11:00 AM PDT Particle team will be performing scheduled maintenance that will affect only Tachyon devices (SKUs TACH4NA, TACH8NA, and TACH8ROW). The maintenance window will last 1 hour, beginning at 10:00 AM PDT on September 2, 2026. During this window, affected Tachyon devices are expected to experience a temporary loss of connectivity. Connectivity will automatically resume once the maintenance window has ended. No other device type or SKU will be affected by this maintenance. All other Particle devices and platform services will continue to operate normally. We will update this page once maintenance has been completed.

Scheduled Maintenance — Tachyon device connectivity affected

Sep <var data-var='date'> 1</var>, <var data-var='time'>16:01</var> PDT Resolved - This incident has been resolved. All Tachyon devices have successfully reconnected and connectivity has been fully restored. Our team identified the root cause and implemented a fix, confirming full recovery across the affected fleet. No other Particle device type or SKU was affected by this incident. Sep <var data-var='date'> 1</var>, <var data-var='time'>14:43</var> PDT Monitoring - We have observed devices recovering and reconnecting. Our team continues to monitor the recovery to ensure full stabilization across the remaining Tachyon devices. We will provide a final update once all devices have fully reconnected and the incident is resolved. Sep <var data-var='date'> 1</var>, <var data-var='time'>14:14</var> PDT Identified - We have identified the cause of the connectivity disruption affecting Tachyon devices. Our team is actively working on a fix to resolve the issue. We will continue to post updates as progress is made. No other Particle device type or SKU is affected by this incident. Sep <var data-var='date'> 1</var>, <var data-var='time'>13:48</var> PDT Investigating - Affected component: Tachyon device connectivity (SKUs: TACH4NA, TACH8NA, TACH8ROW) Started: Today, 1:22 PM PDT Description: We are currently investigating a connectivity disruption affecting Tachyon devices (SKUs TACH4NA, TACH8NA, TACH8ROW). The Particle team is actively investigating the issue and will post updates as more information becomes available. No other Particle device type or SKU is affected by this incident.

Connectivity Disruption — Tachyon Devices

Sep <var data-var='date'> 1</var>, <var data-var='time'>11:55</var> PDT Resolved - This incident has been resolved. All Tachyon devices have successfully reconnected and connectivity has been fully restored. No other Particle device type or SKU was affected by this incident. Sep <var data-var='date'> 1</var>, <var data-var='time'>11:42</var> PDT Monitoring - The majority of Tachyon devices have reconnected and are back online. We continue to monitor the recovery to ensure full stabilization across the remaining devices. We will provide a final update once all devices have fully reconnected and the incident is resolved. Sep <var data-var='date'> 1</var>, <var data-var='time'>10:40</var> PDT Investigating - Affected component: Tachyon device connectivity (SKUs: TACH4NA, TACH8NA, TACH8ROW) Type: Unplanned Incident Status: Investigating Started: Today, 10:30 AM PDT We are currently investigating a connectivity disruption affecting Tachyon devices (SKUs TACH4NA, TACH8NA, TACH8ROW). The issue began following a routine update to our connectivity infrastructure, which triggered an unexpectedly high volume of simultaneous device reconnection attempts. Our team is actively working to restore service and stabilize reconnections. We will post updates as we have more information. No other Particle device type or SKU is affected by this incident.

Aug <var data-var='date'>14</var>, <var data-var='time'>11:00</var> PDT Completed - The scheduled maintenance has been completed. Aug <var data-var='date'>14</var>, <var data-var='time'>10:00</var> PDT In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Aug <var data-var='date'>13</var>, <var data-var='time'>11:47</var> PDT Scheduled - The Particle Cloud infrastructure responsible for the Tachyon will be undergoing maintenance during which time the Cloud connectivity will be intermittent.

Tachyon system maintenance

Aug <var data-var='date'> 5</var>, <var data-var='time'>11:30</var> PDT Completed - The scheduled maintenance has been completed. Aug <var data-var='date'> 5</var>, <var data-var='time'>10:00</var> PDT In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Jul <var data-var='date'>31</var>, <var data-var='time'>09:47</var> PDT Scheduled - Infrastructure maintenance and migration will take place and could delay Logic function execution for up to 15 minutes.

Infrastructure migration

Jul <var data-var='date'>22</var>, <var data-var='time'>23:00</var> PDT Completed - The scheduled maintenance has been completed. Jul <var data-var='date'>22</var>, <var data-var='time'>18:00</var> PDT In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Jul <var data-var='date'>22</var>, <var data-var='time'>11:32</var> PDT Scheduled - One of our network providers' upstream partners will perform scheduled maintenance on Tuesday, July 22, 2026, from 6:00 PM to 11:00 PM PDT This maintenance includes data services. While minimal impact is expected due to redundant systems in place, we will actively monitor the process to ensure continued connectivity.

Emergency maintenance- EtherSIM

Jul <var data-var='date'>22</var>, <var data-var='time'>04:00</var> PDT Completed - The scheduled maintenance has been completed. Jul <var data-var='date'>22</var>, <var data-var='time'>00:00</var> PDT In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Jul <var data-var='date'>15</var>, <var data-var='time'>10:56</var> PDT Scheduled - One of our partners will be performing a scheduled infrastructure upgrade. While we expect minimal to no disruption, some devices may experience brief periods of intermittent connectivity during the maintenance window. Our team will be monitoring the upgrade closely throughout the process to ensure all services remain stable.

Network Maintenance

Jul <var data-var='date'>14</var>, <var data-var='time'>13:27</var> PDT Resolved - The issue is considered resolved. Affected devices will need to be reset or power cycled to resume connectivity. Jul <var data-var='date'> 9</var>, <var data-var='time'>15:11</var> PDT Identified - Particle is working closely with our cellular partners, their regional partners, and the local carriers to address this issue. On the 27th of June a networking change was implemented, and devices coming online since are able to pass data. Investigation into the root cause is ongoing. Jun <var data-var='date'> 8</var>, <var data-var='time'>05:16</var> PDT Investigating - Particle is investigating multiple reports of cellular carriers in South Africa rejecting or not allowing data sessions to flow. The issue relates to B524 and M524 devices.

South African EtherSIM connectivity

May <var data-var='date'>21</var>, <var data-var='time'>13:17</var> PDT Resolved - The issue impacting cellular connectivity on our MVNO network has been resolved. Services have remained stable following recovery, and our teams have confirmed normal operation across affected systems. May <var data-var='date'>21</var>, <var data-var='time'>11:09</var> PDT Monitoring - Connectivity has largely recovered and we are continuing to monitor the situation closely to ensure service stability across the affected MVNO network. At this time, most devices should be operating normally, though a small number of customers may still experience intermittent issues as recovery completes. We will continue monitoring and provide a final update once we confirm the incident is fully resolved. May <var data-var='date'>21</var>, <var data-var='time'>08:44</var> PDT Identified - We are seeing initial signs of recovery as connectivity is being restored for a portion of affected devices. Our teams continue to closely monitor the situation and work with carrier partners to ensure full service restoration. May <var data-var='date'>21</var>, <var data-var='time'>08:07</var> PDT Investigating - We are currently investigating an issue impacting cellular connectivity for some devices on our MVNO network. Our engineering and carrier teams are actively working to identify the root cause and restore normal service as quickly as possible.

Device connectivity instability

May <var data-var='date'>14</var>, <var data-var='time'>18:26</var> PDT Resolved - This incident has been resolved. May <var data-var='date'>14</var>, <var data-var='time'>18:08</var> PDT Monitoring - A fix has been implemented and devices are reconnecting. May <var data-var='date'>14</var>, <var data-var='time'>18:00</var> PDT Update - We are continuing to investigate this issue. May <var data-var='date'>14</var>, <var data-var='time'>18:00</var> PDT Investigating - Particle is investigating issues with device connectivity to the Particle cloud. This affects all devices except legacy devices (Photon/P1). The cause is still under investigation.

May <var data-var='date'> 5</var>, <var data-var='time'>17:41</var> PDT Resolved - Particle has deployed a fix, and services are back to baseline. May <var data-var='date'> 5</var>, <var data-var='time'>17:02</var> PDT Investigating - Particle is investigating reports of unstable integrations and the event stream.

Integration/Event stream instability

May <var data-var='date'> 1</var>, <var data-var='time'>14:01</var> PDT Resolved - Connectivity has recovered. May <var data-var='date'> 1</var>, <var data-var='time'>12:34</var> PDT Monitoring - Our partners have identified the cause of the disruptions, and are observing recovery. We'll continue to monitor the situation. May <var data-var='date'> 1</var>, <var data-var='time'>11:16</var> PDT Investigating - Particle is investigating reports of EtherSIM connection instability.

Ethersim connection instability

Apr <var data-var='date'> 7</var>, <var data-var='time'>08:00</var> PDT Completed - The scheduled maintenance has been completed. Apr <var data-var='date'> 6</var>, <var data-var='time'>23:00</var> PDT In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Mar <var data-var='date'>26</var>, <var data-var='time'>14:30</var> PDT Scheduled - One of our partners will be performing a scheduled infrastructure upgrade to the EtherSIM network. While we expect minimal to no disruption, some devices may experience brief periods of intermittent connectivity during the maintenance window. Our team will be monitoring the upgrade closely throughout the process to ensure all services remain stable.

Network Maintenance - EtherSIM

Mar <var data-var='date'>10</var>, <var data-var='time'>14:18</var> PDT Resolved - The issue was resolved Mar <var data-var='date'>10</var>, <var data-var='time'>10:00</var> PDT Investigating - We are aware of a signaling issue impacting 4G data sessions for a small percentage of devices. We are closely monitoring the issue and working with our provider to resolve it.

EtherSIM - Service degradation

Mar <var data-var='date'> 8</var>, <var data-var='time'>04:39</var> PDT Resolved - Connectivity has recovered to normal levels. Mar <var data-var='date'> 8</var>, <var data-var='time'>03:50</var> PDT Update - Online counts have recovered to expected levels, and reconnections have dropped. We’ll continue to monitor the situation. Mar <var data-var='date'> 8</var>, <var data-var='time'>03:09</var> PDT Monitoring - Devices are recovering and Particle is monitoring the situation. Mar <var data-var='date'> 8</var>, <var data-var='time'>00:28</var> PST Identified - The issue has been identified and a fix is being implemented. Mar <var data-var='date'> 8</var>, <var data-var='time'>00:15</var> PST Investigating - Particle is investigating connectivity issues for devices connected on EtherSIM.

EtherSIM Outage

Feb <var data-var='date'>24</var>, <var data-var='time'>23:23</var> PST Resolved - This incident has been resolved. Feb <var data-var='date'>24</var>, <var data-var='time'>13:56</var> PST Monitoring - A fix has been implemented and the team is monitoring devices. Feb <var data-var='date'>24</var>, <var data-var='time'>13:24</var> PST Investigating - Particle is currently investigating reports of Tachyon devices that are unable to connect to the Particle cloud. Tachyon connectivity is not affected.

Tachyon  Particle cloud

Feb <var data-var='date'> 4</var>, <var data-var='time'>04:00</var> PST Completed - The scheduled maintenance has been completed. Feb <var data-var='date'> 4</var>, <var data-var='time'>02:00</var> PST In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Jan <var data-var='date'>30</var>, <var data-var='time'>12:31</var> PST Scheduled - To improve service performance and connectivity, one of our upstream network partners will be performing scheduled maintenance. We do not expect any service disruption during this window. The update is being rolled out in stages, and our team will be actively monitoring connectivity throughout the process to ensure a smooth transition.

Upstream Network Maintenance

Jan <var data-var='date'> 6</var>, <var data-var='time'>11:00</var> PST Resolved - This incident has been resolved. Jan <var data-var='date'> 6</var>, <var data-var='time'>07:53</var> PST Identified - Particle is aware that some SIM activations are currently facing extended delays. Our cellular partners are actively working on a fix.

SIM activation delays

Dec <var data-var='date'>18</var>, <var data-var='time'>01:15</var> PST Completed - The scheduled maintenance has been completed. Dec <var data-var='date'>18</var>, <var data-var='time'>01:00</var> PST In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Dec <var data-var='date'>11</var>, <var data-var='time'>09:58</var> PST Scheduled - One of our cellular connectivity partners has scheduled maintenance on Thursday, December 18, 2025, at 01:00 AM PST and ending at 01:15 AM PST During this window, SIM provisioning services may experience an interruption of up to 10 minutes. This may impact operations such as SIM management actions (e.g., activation, deactivation, or metadata updates) and initial device onboarding (first boot and network registration). All other services are expected to remain unaffected. We will monitor the situation closely and provide updates if necessary.

Scheduled Maintenance - SIM Management

Dec <var data-var='date'>10</var>, <var data-var='time'>00:00</var> PST Completed - The scheduled maintenance has been completed. Dec <var data-var='date'> 9</var>, <var data-var='time'>21:00</var> PST In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Nov <var data-var='date'>28</var>, <var data-var='time'>10:53</var> PST Scheduled - One of our cellular network partners will perform scheduled maintenance starting Tuesday, December 9, 2025, at 21:00 PST and ending Wednesday, December 10, 2025, at 00:00 PST. During this window, devices may experience up to two brief data session interruptions, each lasting less than one minute. Our team will be actively monitoring throughout the maintenance period to ensure everything is completed successfully.

Cellular Network Maintenance - North America

Nov <var data-var='date'>12</var>, <var data-var='time'>01:00</var> PST Completed - The scheduled maintenance has been completed. Nov <var data-var='date'>11</var>, <var data-var='time'>18:00</var> PST In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Nov <var data-var='date'> 4</var>, <var data-var='time'>12:58</var> PST Scheduled - Our cellular network provider has scheduled maintenance that may temporarily impact connectivity for Particle devices operating in North America. Maintenance window: November 11, 2025, 18:00 PDT (UTC-7) To minimize service impact, the maintenance activities will be staggered. During this time, customers may experience brief disruptions of up to five minutes. Devices should automatically reconnect once the maintenance is complete.

Oct <var data-var='date'>22</var>, <var data-var='time'>17:46</var> PDT Completed - Our emergency maintenance has been successfully completed, and all UDP-connected devices have fully recovered. Services are now operating normally, and no further impact is expected. We’ll continue to monitor system performance closely to ensure stability. Oct <var data-var='date'>22</var>, <var data-var='time'>17:05</var> PDT In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Oct <var data-var='date'>22</var>, <var data-var='time'>17:04</var> PDT Scheduled - As part of our recovery efforts following yesterday’s outage, we are performing a brief maintenance window to finalize system restoration. During this period, a portion of our UDP devices will be temporarily disconnected. We expect full recovery in about 30 minutes. All affected devices will automatically reconnect once maintenance is complete.

Emergency Maintenance

Oct <var data-var='date'>21</var>, <var data-var='time'>03:51</var> PDT Resolved - The incident has been resolved. Oct <var data-var='date'>20</var>, <var data-var='time'>15:08</var> PDT Monitoring - We identified that our cloud services were impacted by the ongoing AWS outage. Our team has applied some changes that allows the cloud services to auto recover when needed. Periodic disruptions are still expected, but the data to/from the cloud should improve. Oct <var data-var='date'>20</var>, <var data-var='time'>14:00</var> PDT Update - The issue is ongoing, and the team is still investigating. Oct <var data-var='date'>20</var>, <var data-var='time'>12:47</var> PDT Investigating - Particle is investigating issues with device connectivity to the Particle cloud. This affects all devices, both WiFi and Cellular. The cause is still under investigation.

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Lastest published events

Emergency Network Maintenance – EtherSIM Cellular Connectivity (US)

Infrastructure issue affecting Tachyon devices

Scheduled Maintenance — Tachyon device connectivity affected

Particle Services, Components and Regions

Recent Particle events

Emergency Network Maintenance – EtherSIM Cellular Connectivity (US)

Infrastructure issue affecting Tachyon devices

Scheduled Maintenance — Tachyon device connectivity affected

Connectivity Disruption — Tachyon Devices

Connectivity Disruption — Tachyon Devices

Tachyon system maintenance