Ethereum layer‑2 ZK‑rollup network faces disruptions amid ongoing reliability concerns
Starknet, a leading Ethereum ZK‑rollup network, is currently experiencing mainnet downtime, marking the latest disruption for the layer‑2 platform that supports decentralized finance, gaming, and Bitcoin-related applications on Ethereum. Engineers are actively investigating the issue to restore full network functionality.
The downtime, which has persisted for just over two hours, has not yet been linked to a specific cause. STRK token prices remained steady despite the outage, highlighting that market activity has not been significantly affected in the short term. Starknet operates by batching transactions off-chain and posting cryptographic proofs to Ethereum, aiming to reduce fees and increase throughput while inheriting Ethereum’s base-layer security.
This incident follows multiple outages in 2025, including a significant disruption in September triggered by the Grinta (v0.14.0) upgrade. That event caused halted block production and two chain reorganizations, requiring users to resubmit affected transactions. Earlier in 2025, sequencer issues led to multi-hour outages, raising questions about network reliability. The September incident report traced problems to Ethereum RPC provider failures and sequencer bugs, prompting commitments to architectural improvements and expanded monitoring.
Starknet’s engineering team continues to investigate the current downtime while reinforcing measures to prevent future disruptions. The network remains a key infrastructure component for DeFi, gaming, and BTCFi applications, with attention now focused on maintaining operational stability.
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