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Windows 11 24H2+ - Dismal SMB performance with 3rd Party Storage
Ever since we have upgraded our machines to 24H2 and 25H2 respectively, we've been seeing very poor SMB performance while reading, saving and copying to both of our Isilon storage clusters when over ...
The fact that you're seeing identical behavior in Server 2025 confirms this is a core Windows networking stack regression. These workarounds have proven effective for numerous organizations experiencing the same issue with Isilon and other third-party SMB implementations.