---
title: "zkSync went down for 5 hours on Christmas Day but is now back online"
url: https://diffcoin.com/zksync-went-down-for-5-hours-on-christmas-day-but-is-now-back-online/
description: "Developers of the zkSync network got an unwelcomed Christmas present on Dec. 25. The network went offline, requiring the team to “inspect” it during the…"
published: 2023-12-25
updated: 2023-12-25
author: "Mila"
site: "Diffcoin"
---

# zkSync went down for 5 hours on Christmas Day but is now back online

Developers of the zkSync network got an unwelcomed Christmas present on Dec. 25. The network went offline, [requiring](https://twitter.com/zkSyncDevs/status/1739237721963651143) the team to “inspect” it during the holiday to determine what went wrong, according to a Christmas Day announcement from the team. As per the team, zkSync was back up and running after approximately five hours.

> The zkSync Era network is now fully operational. At 05:50 UTC, one of the network’s automated safety protocols was triggered by a bug in the server. This issue required teams to inspect and is now fully resolved.
> 
> We will share a full post-mortem report soon. Thank you for your…
> 
> — zkSync Developers (∎, ∆) (@zkSyncDevs) [December 25, 2023](https://twitter.com/zkSyncDevs/status/1739237721963651143?ref_src=twsrc%5Etfw)

At 7:36 am UTC, the zkSync team [posted](https://twitter.com/zkSyncDevs/status/1739188416875765797) an announcement on X (formerly Twitter) stating that the network was “currently encountering network issues.” They claimed they were “actively addressing the situation” and were “committed” to getting it back online. At 10:52 am UTC, the team posted another message, stating that the issue was resolved. “[O]ne of the network’s automated safety protocols was triggered by a bug in the server,” the post stated, adding that the network was now “fully operational.” According to the message, the crash had occurred at 5:50 UTC, which implies that zkSync was down for approximately five hours.

***Related:** **Why a gold rush for inscriptions has crashed half a dozen blockchain networks***

Shutdowns and crashes affecting blockchain networks have occurred several times over the course of 2023. In January, Solana suffered a four-hour outage from a distributed denial of service (DDoS) attack. In March, Polygon went down for more than 11 hours because of a bug introduced during a hard fork. And on Dec. 15, a sudden burst of inscription minting caused Ethereum layer-2 Abitrum to go down for 78 minutes.

[Source link](https://cointelegraph.com/news/zksync-went-down-5-hours-christmas-day-now-back-online)