tag:status.arbitrum.io,2005:/history Arbitrum Status - Incident history 2026-09-04T11:02:03.642+00:00 Arbitrum tag:status.arbitrum.io,2005:Incident/cmtmugqyi0afx0wo5alemn1d2 2026-09-04T11:02:03.642+00:00 2026-09-04T11:04:15.167+00:00 ARB1 - Arbiscan outage Type: Incident

Duration: 2 minutes

Affected Components: ARB1 - Arbiscan

Sep 4, 11:04:15 GMT+0
Resolved - ARB1 - Arbiscan is now operational! This update was created by an automated monitoring service..

Sep 4, 11:02:03 GMT+0
Investigating - ARB1 - Arbiscan cannot be accessed at the moment. More details, including information about planned outages, can be found on the [Arbiscan status page](https://arbiscan.freshstatus.io/). This incident was created by an automated monitoring service..

]]> tag:status.arbitrum.io,2005:Incident/cmszz7f4q0dnf0ko0h06si5ir 2026-08-19T10:56:04.442+00:00 2026-08-19T10:57:26.505+00:00 ARB1 - Arbiscan outage Type: Incident

Duration: 1 minute

Affected Components: ARB1 - Arbiscan

Aug 19, 10:57:26 GMT+0
Resolved - ARB1 - Arbiscan is now operational! This update was created by an automated monitoring service..

Aug 19, 10:56:04 GMT+0
Investigating - ARB1 - Arbiscan cannot be accessed at the moment. More details, including information about planned outages, can be found on the [Arbiscan status page](https://arbiscan.freshstatus.io/). This incident was created by an automated monitoring service..

]]> tag:status.arbitrum.io,2005:Incident/cmszsuiyg0jty0rmltwk36h7t 2026-08-19T07:58:05.175+00:00 2026-08-19T08:02:03.962+00:00 ARB1 - Arbiscan outage Type: Incident

Duration: 4 minutes

Affected Components: ARB1 - Arbiscan

Aug 19, 08:02:03 GMT+0
Resolved - ARB1 - Arbiscan is now operational! This update was created by an automated monitoring service..

Aug 19, 07:58:05 GMT+0
Investigating - ARB1 - Arbiscan cannot be accessed at the moment. More details, including information about planned outages, can be found on the [Arbiscan status page](https://arbiscan.freshstatus.io/). This incident was created by an automated monitoring service..

]]> tag:status.arbitrum.io,2005:Incident/cmrp61aln0e4z1amrzci4e45y 2026-07-17T16:42:05.667+00:00 2026-07-17T16:49:26.343+00:00 ARB1 - Arbiscan outage Type: Incident

Duration: 7 minutes

Affected Components: ARB1 - Arbiscan

Jul 17, 16:49:26 GMT+0
Resolved - ARB1 - Arbiscan is now operational! This update was created by an automated monitoring service..

Jul 17, 16:42:05 GMT+0
Investigating - ARB1 - Arbiscan cannot be accessed at the moment. More details, including information about planned outages, can be found on the [Arbiscan status page](https://arbiscan.freshstatus.io/). This incident was created by an automated monitoring service..

]]> tag:status.arbitrum.io,2005:Incident/cmrkadyms07pf0zo29fhzkk97 2026-07-14T06:45:04.276+00:00 2026-07-14T07:54:03.482+00:00 ARB1 - Arbiscan outage Type: Incident

Duration: 1 hour and 9 minutes

Affected Components: ARB1 - Arbiscan

Jul 14, 07:54:03 GMT+0
Resolved - ARB1 - Arbiscan is now operational! This update was created by an automated monitoring service..

Jul 14, 07:54:03 GMT+0
Resolved - ARB1 - Arbiscan is now operational! This update was created by an automated monitoring service..

Jul 14, 06:45:04 GMT+0
Investigating - ARB1 - Arbiscan cannot be accessed at the moment. More details, including information about planned outages, can be found on the [Arbiscan status page](https://arbiscan.freshstatus.io/). This incident was created by an automated monitoring service..

]]> tag:status.arbitrum.io,2005:Incident/cmrk7yjhp08hs0kpn3wnsri2i 2026-07-14T05:37:05.580+00:00 2026-07-14T06:08:31.420+00:00 ARB1 - Arbiscan outage Type: Incident

Duration: 31 minutes

Affected Components: ARB1 - Arbiscan

Jul 14, 06:08:31 GMT+0
Resolved - ARB1 - Arbiscan is now operational! This update was created by an automated monitoring service..

Jul 14, 05:37:05 GMT+0
Investigating - ARB1 - Arbiscan cannot be accessed at the moment. More details, including information about planned outages, can be found on the [Arbiscan status page](https://arbiscan.freshstatus.io/). This incident was created by an automated monitoring service..

]]> tag:status.arbitrum.io,2005:Incident/cmpfn10dh00o0peksqhe3iqz7 2026-05-20T19:55:00.000+00:00 2026-05-20T20:11:00.000+00:00 Intermittent feed connection issues Type: Incident

Duration: 16 minutes

Affected Components: NOVA - Feed, ARB1 - Feed

May 20, 20:11:00 GMT+0
Resolved - This incident has been resolved..

May 20, 19:55:00 GMT+0
Investigating - We have been made aware of feed connection issues and are currently investigating this incident..

]]> tag:status.arbitrum.io,2005:Incident/cmpavi5rw006ppad3816aht08 2026-05-18T07:19:05.660+00:00 2026-05-18T07:20:05.650+00:00 ARB1 - Arbiscan outage Type: Incident

Duration: 1 minute

Affected Components: ARB1 - Arbiscan

May 18, 07:20:05 GMT+0
Resolved - ARB1 - Arbiscan is now operational! This update was created by an automated monitoring service..

May 18, 07:19:05 GMT+0
Investigating - ARB1 - Arbiscan cannot be accessed at the moment. More details, including information about planned outages, can be found on the [Arbiscan status page](https://arbiscan.freshstatus.io/). This incident was created by an automated monitoring service..

]]> tag:status.arbitrum.io,2005:Incident/cmp3wf80i0016p8a0ycsul724 2026-05-13T00:59:00.000+00:00 2026-05-13T10:18:00.000+00:00 Delays in posting an assertion. Type: Incident

Duration: 30 minutes

Affected Components: ARB1 - Validator

May 13, 10:18:00 GMT+0
Resolved - This incident has been resolved. An assertion was posted and all network components are fully operational..

May 13, 01:29:00 GMT+0
Identified - We are continuing to work on a fix for this incident..

May 13, 00:59:00 GMT+0
Investigating - We are currently investigating this incident..

]]> tag:status.arbitrum.io,2005:Incident/cmozuulkw03gf1d1l71g3ejxo 2026-05-10T14:15:18.464+00:00 2026-05-10T14:16:06.338+00:00 ARB1 - Arbiscan outage Type: Incident

Duration: 1 minute

Affected Components: ARB1 - Arbiscan

May 10, 14:16:06 GMT+0
Resolved - ARB1 - Arbiscan is now operational! This update was created by an automated monitoring service..

May 10, 14:15:18 GMT+0
Investigating - ARB1 - Arbiscan cannot be accessed at the moment. More details, including information about planned outages, can be found on the [Arbiscan status page](https://arbiscan.freshstatus.io/). This incident was created by an automated monitoring service..

]]> tag:status.arbitrum.io,2005:Incident/cmncv1a9x000xu8ji6lk5znq2 2026-03-30T07:22:06.021+00:00 2026-03-30T07:24:06.346+00:00 ARB1 - Arbiscan outage Type: Incident

Duration: 2 minutes

Affected Components: ARB1 - Arbiscan

Mar 30, 07:24:06 GMT+0
Resolved - ARB1 - Arbiscan is now operational! This update was created by an automated monitoring service..

Mar 30, 07:22:06 GMT+0
Investigating - ARB1 - Arbiscan cannot be accessed at the moment. More details, including information about planned outages, can be found on the [Arbiscan status page](https://arbiscan.freshstatus.io/). This incident was created by an automated monitoring service..

]]> tag:status.arbitrum.io,2005:Incident/cmn3ei5pb13zs995pku585l4s 2026-03-23T16:29:24.069+00:00 2026-03-23T22:37:04.347+00:00 Block production halted Type: Incident

Duration: 6 hours and 8 minutes

Affected Components: SEPOLIA - Batch Poster, SEPOLIA - Feed, SEPOLIA - Sequencer, SEPOLIA - Validator

Mar 23, 22:37:04 GMT+0
Resolved - Arbitrum Sepolia block production has been restored. Transactions and deployments on the Arbitrum Sepolia network should now be working as usual again. .

Mar 23, 16:30:16 GMT+0
Identified - We are continuing to work on a fix for this incident..

Mar 23, 16:29:24 GMT+0
Investigating - We are currently investigating this incident..

]]> tag:status.arbitrum.io,2005:Incident/cmmiv7sym04bozhqksaf5i5ny 2026-03-09T07:34:04.894+00:00 2026-03-09T07:49:14.255+00:00 ARB1 - Arbiscan outage Type: Incident

Duration: 15 minutes

Affected Components: ARB1 - Arbiscan

Mar 9, 07:49:14 GMT+0
Resolved - ARB1 - Arbiscan is now operational! This update was created by an automated monitoring service..

Mar 9, 07:34:04 GMT+0
Investigating - ARB1 - Arbiscan cannot be accessed at the moment. More details, including information about planned outages, can be found on the [Arbiscan status page](https://arbiscan.freshstatus.io/). This incident was created by an automated monitoring service..

]]> tag:status.arbitrum.io,2005:Incident/cmlof6i0s0pp6m1zog6eioe0w 2026-02-16T00:12:04.924+00:00 2026-02-16T00:13:04.392+00:00 ARB1 - Arbiscan outage Type: Incident

Duration: 1 minute

Affected Components: ARB1 - Arbiscan

Feb 16, 00:13:04 GMT+0
Resolved - ARB1 - Arbiscan is now operational! This update was created by an automated monitoring service..

Feb 16, 00:12:04 GMT+0
Investigating - ARB1 - Arbiscan cannot be accessed at the moment. More details, including information about planned outages, can be found on the [Arbiscan status page](https://arbiscan.freshstatus.io/). This incident was created by an automated monitoring service..

]]> tag:status.arbitrum.io,2005:Incident/cmleudx7404kn10n5ysb5twnf 2026-02-09T07:20:03.664+00:00 2026-02-09T07:26:05.699+00:00 ARB1 - Arbiscan outage Type: Incident

Duration: 6 minutes

Affected Components: ARB1 - Arbiscan

Feb 9, 07:26:05 GMT+0
Resolved - ARB1 - Arbiscan is now operational! This update was created by an automated monitoring service..

Feb 9, 07:20:03 GMT+0
Investigating - ARB1 - Arbiscan cannot be accessed at the moment. More details, including information about planned outages, can be found on the [Arbiscan status page](https://arbiscan.freshstatus.io/). This incident was created by an automated monitoring service..

]]> tag:status.arbitrum.io,2005:Incident/cmldahbp80emtgop89umx5zyo 2026-02-08T05:15:03.931+00:00 2026-02-08T05:16:04.205+00:00 ARB1 - Arbiscan outage Type: Incident

Duration: 1 minute

Affected Components: ARB1 - Arbiscan

Feb 8, 05:16:04 GMT+0
Resolved - ARB1 - Arbiscan is now operational! This update was created by an automated monitoring service..

Feb 8, 05:15:03 GMT+0
Investigating - ARB1 - Arbiscan cannot be accessed at the moment. More details, including information about planned outages, can be found on the [Arbiscan status page](https://arbiscan.freshstatus.io/). This incident was created by an automated monitoring service..

]]> tag:status.arbitrum.io,2005:Incident/cml9znj2r00cjuy23b9699i0v 2026-02-05T17:00:00.000+00:00 2026-02-06T04:37:20.678+00:00 Delays in posting an assertion. Type: Incident

Duration: 11 hours and 37 minutes

Affected Components: ARB1 - Validator

Feb 6, 04:37:20 GMT+0
Resolved - This incident has been resolved. An assertion was posted and all network components are fully operational. .

Feb 5, 22:29:51 GMT+0
Identified - We are continuing to work on a fix for this incident..

Feb 5, 17:00:00 GMT+0
Investigating - We are currently investigating this incident..

]]> tag:status.arbitrum.io,2005:Incident/cml5u0zbh00cf5g8v7apvhdvf 2026-02-03T00:00:04.301+00:00 2026-02-03T00:01:06.139+00:00 ARB1 - Arbiscan outage Type: Incident

Duration: 1 minute

Affected Components: ARB1 - Arbiscan

Feb 3, 00:01:06 GMT+0
Resolved - ARB1 - Arbiscan is now operational! This update was created by an automated monitoring service..

Feb 3, 00:00:04 GMT+0
Investigating - ARB1 - Arbiscan cannot be accessed at the moment. More details, including information about planned outages, can be found on the [Arbiscan status page](https://arbiscan.freshstatus.io/). This incident was created by an automated monitoring service..

]]> tag:status.arbitrum.io,2005:Incident/cmkujksif04fcz20r16molbyq 2026-01-26T02:22:04.886+00:00 2026-01-26T03:07:05.704+00:00 ARB1 - Arbiscan outage Type: Incident

Duration: 45 minutes

Affected Components: ARB1 - Arbiscan

Jan 26, 03:07:05 GMT+0
Resolved - ARB1 - Arbiscan is now operational! This update was created by an automated monitoring service..

Jan 26, 02:22:04 GMT+0
Investigating - ARB1 - Arbiscan cannot be accessed at the moment. More details, including information about planned outages, can be found on the [Arbiscan status page](https://arbiscan.freshstatus.io/). This incident was created by an automated monitoring service..

]]> tag:status.arbitrum.io,2005:Incident/cmkufbr5401faboz77gro05lp 2026-01-26T00:23:04.744+00:00 2026-01-26T01:41:05.429+00:00 ARB1 - Arbiscan outage Type: Incident

Duration: 1 hour and 18 minutes

Affected Components: ARB1 - Arbiscan

Jan 26, 01:41:05 GMT+0
Resolved - ARB1 - Arbiscan is now operational! This update was created by an automated monitoring service..

Jan 26, 00:23:04 GMT+0
Investigating - ARB1 - Arbiscan cannot be accessed at the moment. More details, including information about planned outages, can be found on the [Arbiscan status page](https://arbiscan.freshstatus.io/). This incident was created by an automated monitoring service..

]]> tag:status.arbitrum.io,2005:Incident/cmknvez5d09nlfzzynusj1hhc 2026-01-21T10:19:05.713+00:00 2026-01-21T10:46:05.742+00:00 ARB1 - Arbiscan outage Type: Incident

Duration: 27 minutes

Affected Components: ARB1 - Arbiscan

Jan 21, 10:46:05 GMT+0
Resolved - ARB1 - Arbiscan is now operational! This update was created by an automated monitoring service..

Jan 21, 10:19:05 GMT+0
Investigating - ARB1 - Arbiscan cannot be accessed at the moment. More details, including information about planned outages, can be found on the [Arbiscan status page](https://arbiscan.freshstatus.io/). This incident was created by an automated monitoring service..

]]> tag:status.arbitrum.io,2005:Incident/cmk3hc4qf03be1et0bxvpym69 2026-01-07T02:30:36.263+00:00 2026-01-07T06:32:17.170+00:00 Batch posting issue Type: Incident

Duration: 4 hours and 2 minutes

Affected Components: ARB1 - Batch Poster

Jan 7, 06:32:17 GMT+0
Resolved - This incident has been resolved..

Jan 7, 02:30:36 GMT+0
Investigating - An infrastructure issue temporarily prevented posting batches to mainnet, we are currently investigating this incident..

]]> tag:status.arbitrum.io,2005:Incident/cmi8lmkpx007fcupnflechabg 2025-11-21T08:29:06.789+00:00 2025-11-21T08:36:08.130+00:00 NOVA - Arbiscan outage Type: Incident

Duration: 7 minutes

Nov 21, 08:36:08 GMT+0
Resolved - NOVA - Arbiscan is now operational! This update was created by an automated monitoring service..

Nov 21, 08:29:06 GMT+0
Investigating - NOVA - Arbiscan cannot be accessed at the moment. More details, including information about planned outages, can be found on the [Arbiscan status page](https://arbiscan.freshstatus.io/). This incident was created by an automated monitoring service..

]]> tag:status.arbitrum.io,2005:Incident/cmi4jy6cz00n8xa5e0ajwjz48 2025-11-18T12:31:04.114+00:00 2025-11-18T12:32:06.187+00:00 ARB1 - Arbiscan outage Type: Incident

Duration: 1 minute

Affected Components: ARB1 - Arbiscan

Nov 18, 12:32:06 GMT+0
Resolved - ARB1 - Arbiscan is now operational! This update was created by an automated monitoring service..

Nov 18, 12:31:04 GMT+0
Investigating - ARB1 - Arbiscan cannot be accessed at the moment. More details, including information about planned outages, can be found on the [Arbiscan status page](https://arbiscan.freshstatus.io/). This incident was created by an automated monitoring service..

]]> tag:status.arbitrum.io,2005:Incident/cmi4j4lhg00nry2xtno7vp9rg 2025-11-18T12:08:04.035+00:00 2025-11-18T12:13:05.912+00:00 ARB1 - Arbiscan outage Type: Incident

Duration: 5 minutes

Affected Components: ARB1 - Arbiscan

Nov 18, 12:13:05 GMT+0
Resolved - ARB1 - Arbiscan is now operational! This update was created by an automated monitoring service..

Nov 18, 12:13:05 GMT+0
Resolved - ARB1 - Arbiscan is now operational! This update was created by an automated monitoring service..

Nov 18, 12:13:05 GMT+0
Resolved - ARB1 - Arbiscan is now operational! This update was created by an automated monitoring service..

Nov 18, 12:13:05 GMT+0
Resolved - ARB1 - Arbiscan is now operational! This update was created by an automated monitoring service..

Nov 18, 12:08:04 GMT+0
Investigating - ARB1 - Arbiscan cannot be accessed at the moment. More details, including information about planned outages, can be found on the [Arbiscan status page](https://arbiscan.freshstatus.io/). This incident was created by an automated monitoring service..

]]> tag:status.arbitrum.io,2005:Maintenance/cmbie4qgd0022dq32vl19ds1j 2025-06-09T14:00:00.000+00:00 2025-06-09T19:00:00.000+00:00 Routine Timeboost Auctioneer maintenance Type: Maintenance

Duration: 5 hours

Affected Components: ARB1 - Batch Poster, ARB1 - Arbiscan, , ARB1 - Validator, ARB1 - Feed, , ARB1 - Sequencer → ARB1 →

Jun 9, 19:00:00 GMT+0
Completed - Maintenance has completed successfully..

Jun 9, 14:00:00 GMT+0
Identified - We are planning a scheduled/routine Timeboost-related maintenance window during this time. Timeboost bids will not be accepted during this time, but all other chain operations are expected to function as usual..

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