Signal
Starknet Sepolia testnet experiences block production delays and network stall
On March 20-21, 2026, Starknet's Sepolia testnet faced significant block production slowdowns and a network-wide stall at block 7,877,738. Multiple infrastructure providers, including QuickNode and Alchemy, reported degraded performance and ongoing investigations.
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blockchaininfrastructurenetwork_issuesstarknettestnetmainnet
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- Starknet status pagestatus.starknet.io
- QuickNode status pagestatus.quicknode.com
- Alchemy status pagestatus.alchemy.com
- Starknet mainnet – slow block creation alertStatus - Starknet
- Starknet Sepolia - Network StallStatus - QuickNode