The Open Network (TON), a blockchain project closely linked to messaging giant Telegram, has fully recovered from a temporary outage that briefly halted block production on June 1. Developers moved swiftly to address the issue, restoring normal operations just 40 minutes after the disruption began.
Block production has been restored ✅
— TON 💎 (@ton_blockchain) June 1, 2025
A quick fix was released, and updating only a few master chain validators was sufficient to resume block production.
The incident was related to an error in the processing of the masterchain dispatch queue.
We will release a technical…
In an official update, TON’s development team attributed the incident to a glitch in the masterchain dispatch queue—an internal process critical to block production. The issue disrupted consensus across the network but was quickly isolated and resolved with a targeted software patch. Only a subset of masterchain validators needed updating to bring the network back online.
Importantly, no user assets were affected during the downtime, and developers have confirmed a detailed post-mortem report is on the way.
While concerning, the incident isn’t unprecedented for TON—or for blockchain networks in general. Similar service interruptions have impacted high-throughput platforms like Solana and Sui, typically caused by validator issues, software bugs, or sudden spikes in network activity.
TON itself has faced multiple performance setbacks in recent years. In August 2024, the network suffered two back-to-back outages triggered by traffic surges from the launch of the popular DOGS memecoin. Block production stopped on August 27 and resumed only after validators coordinated a system-wide reset. A second outage the next day lasted around six hours.
Earlier, in December 2023, a wave of TON20 token transactions severely degraded network performance, dropping the transaction per second (TPS) rate from 100,000 to less than one. The cause: validators running underpowered hardware. A fix was deployed, and developers began urging validators to upgrade their systems, warning of future penalties for non-compliance.
Despite these technical hiccups, the TON project continues to attract significant interest. In March 2025, it secured a $400 million funding round from prominent investors including Sequoia Capital, Draper Associates, CoinFund, and SkyBridge. That support underscores growing confidence in TON’s long-term vision and utility, particularly as Telegram integrates Web3 features more deeply into its platform.
