deployment - ClickOnce: DeploymentDownloadException: The operation has timed out -

symptoms:. ClickOnce installation starts and closes around 600 KB (outside of 2 MB)

Progress always stops at the same value (ten times the effort).

The error log says that the operation timed out (in the inner exception) and fails together " DeploymentDownloadException <. / B> (unknown Sub type) "

Error log description (trimmed irrelevant information):

Error details found during this operation after errors. System.Deployment.Application.DeploymentDownloadException (unknown subtype) - Download http: //fullpath/name.dll.deploy was not successful. - Source: System. Planning - Stack Trace: On System Deployment.app. Systemsman Downloader Download Downloading File (Downloa DQEITIM Next) on the system. Deployment. Application SystemSnate Downloader Download the file () on the system. Depreciation. Application. File Downloader. Download (SubstationState SubState) --- Internal Exception --- System.Net.WebException - The operation timed out. - Source: System - Stack Trace: System.Net.ConnectStream.Read (byte [] buffer, int32 offset, int32 size) on system.Deployment.Application.SystemNetDownloader.DownloadSingleFile (Downloa dQueueItem next) / P>

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It works only for two customers, installs fine for other thousands of people. I have no answer or general "firewall problem" or "customer was using dialup" with Google Has got many posts by

Has anyone solved this? Is this a ClickOnce bug?

After

Disabling firewall software on the machine because the installation on a hardware firewall was not the cause of the network (Fortegate 30b).