各位大神，VS2019无法在线安装时，提示“无法下载安装文件。请检查INTERNET连接，然后重试”。
然后到临时目录下发现有“VSFaultInfo”的文件夹，里边的“ErrorInformation.txt”内容如下：
Error Information
AppInsightsEvent Name = vs/setup/bootstrapper/error
Description = Failure to download
TelemetrySession = '7160a1ff-a0a2-402b-bacd-8365a90fe1c7' Started = True OptIn=True IsInitialized = True Cloned = False
WatsonEventType = VisualStudioNonFatalErrors2
UTC time = 2020-08-15T01:32:15
Exception:
Microsoft.VisualStudio.Setup.Security.InvalidSignatureException
Package signature verification threw exception: 终结点映射器中没有更多的终结点可用。
, for path: vs_installer.opc"
Microsoft.VisualStudio.Setup.Download.DownloadManager.DownloadWithRetry(IDownloadEngine[] engines, Uri uri, Stream outputStream, ProgressUpdateCallback progress, CancellationToken cancellationToken, DownloadContext downloadContext, Boolean verifySignature)
系统：WIN10 X64 2004 19041.450
请教各位大神，帮忙解决一下！
感谢！
