TON’s Quick Recovery: How a 40-Minute Fix Prevented Major Disruption and Secured $400M

TON quickly resolved a June 1 outage, restoring block production in 40 minutes and ensuring no impact on user assets, while securing $400M in funding for growth.

Yahya Raza
June 2, 2025
9:03 pm

Yahya Raza

Syed Yahya Raza Sherzai is a crypto news writer known for his in-depth analysis and timely reporting on blockchain technology, cryptocurrency markets, and decentralized finance (DeFi). With a keen eye for emerging trends and regulatory developments, Sherzai has established himself as a trusted voice in the cryptocurrency space.

TON resumed block production 40 minutes after identifying the issue, minimizing disruption for users.
Developers quickly deployed a patch, ensuring user assets remained safe and block production resumed.
Despite past disruptions, TON secured $400M in funding, reflecting strong investor confidence.

Telegram’s Open Network (TON) returned to functioning on June 1 after a pause in its block-producing work. TON developers reported that they implemented a fix only 40 minutes after discovering the issue. The fast recovery resulted in the network going back to normal block production. Because of the quick recovery, there was not much impact on the overall system.

Block production has been restored ✅

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…
— TON 💎 (@ton_blockchain) June 1, 2025

TON explained in its official update that a problem in processing the masterchain dispatch queue led to the temporary disruption of block production. Developers of TON handled the issue by sending out a patch quickly, which updated the network at the masterchain-validator level. The fix made it possible for the network to reach a consensus again and continue normal activities. The team reported that user assets remained safe after the security incident which reassured TON community members.

The fast reaction of the development team shows that they are able to deal with such issues efficiently. A report with details about the incident will soon be available. The brief outage did not cause lasting problems and users were able to continue using the service as normal afterwards.

TON Faces Past Outages

The incident was managed fast, though this kind of disruption is familiar in other ecosystems. Similar issues have come up with other popular high-throughput blockchains such as Solana and Sui. These issues usually start when the validator node software has a failure or bug. These problems commonly happen when there is too much traffic on the network or a problem with the system’s code.

TON has experienced similar pauses in the past. Overwhelming traffic from the DOGS memecoin launch resulted in two significant outages for the network in August 2024. Because of the first outage, block creation came to a standstill, and a synchronized reset of the nodes was required to bring the network back. There was another six-hour outage which caused more problems for TON.

In December 2023, TON20 witnessed increased activity, which caused a steep reduction in transaction speeds. Those validators with lower hardware resources struggled to deal with the increased load. This caused the number of transactions the network could handle to decrease from 100,000 per second to almost zero. After issuing a patch, the developers advised users to update their hardware to help avoid such issues again.

Even with the technical objections, interest in TON continues. By March 2025, Sequoia Capital and Draper Associates initiated the financing of $400 million into the network. This step shows strong confidence in the future success of the TON ecosystem.