Create the following DWORDs in HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Lanmanworkstation\Parameters and set them to zero.

DirectoryCacheLifetime       REG_DWORD     0x00000000 (0)
FileInfoCacheLifetime        REG_DWORD     0x00000000 (0)
FileNotFoundCacheLifetime    REG_DWORD     0x00000000 (0)

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