Solana's network congestion is an ongoing problem, especially during periods of high demand. Although Solana is known for its high throughput and low transaction costs, it has faced congestion issues in certain scenarios that have affected its reliability. Reasons around Solana's network congestion include: High throughput architecture
Solan's blockchain architecture is designed for high-speed transactions, theoretically handling 65,000 transactions per second (TPS). It achieves this by using a unique Proof-of-History (PoH) method combined with Proof-of-Stake (PoS). However, when transaction volume increases dramatically, this design sometimes leads to instability rather than seamless scaling.