Marinade Finance reported early today that Solana nearly stalled after a routing failure at infrastructure provider Teraswitch knocked 28.83% of staked SOL offline. The number sat just below the 33.34% threshold that could trigger a chain-wide standstill. The incident affected 90 validators and cost roughly 333 SOL in rewards. A faulty route from a Miami node spread to Europe and Asia-Pacific, leaving 12 nodes (LON1, AMS1-3, DUB1-2, FRA2, SGP1-2, TYO1-3) without valid routes. North America was unaffected and the problem was fixed within 10 minutes. Marinade also flagged concentration risk around AS20326, an ASN that hosts more than a quarter of all staked SOL. During the failure, 94% of its stake went offline at once, equal to 27.34% of total staked SOL and above SFDP's 25% cap. The second-largest validator, Helius, stayed offline for 33 minutes, with only a few nodes achieving clean failover. Marinade said it will review its staking concentration ceiling and push validators to publicly disclose failover capabilities.
Solana came close to a full network halt this morning after a routing failure at infrastructure provider Teraswitch knocked 28.83% of staked SOL offline. The percentage was just shy of the 33.34% threshold that could trigger a chain-wide standstill.
The incident hit 90 validators and cost the network roughly 333 SOL in lost rewards. Marinade Finance, which disclosed the details on X, said the trouble began when a faulty route from a Miami node was broadcast to Europe and the Asia-Pacific region. Twelve nodes — LON1, AMS1-3, DUB1-2, FRA2, SGP1-2, TYO1-3 — lost valid routes. North America was not affected. The fault was cleared within 10 minutes.
Marinade also highlighted a concentration risk tied to AS20326. That ASN controls more than a quarter of the entire network's staked SOL. During the outage, 94% of its stake went offline at once, equal to 27.34% of all staked SOL network-wide. That reading breached the 25% cap set by SFDP.
The second-largest validator node on the network, Helius, remained offline for 33 minutes. Only a few nodes managed a clean failover. Marinade said it will review its staking concentration ceiling and push validators to publicly disclose failover capabilities.
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