Why github installation gets stuck even when internet is working? - github

Question

I am trying to install GitHub on my Windows 8 system. I downloaded it from github-windows.s3.amazonaws.com . Every time installation stops and I get the error message that your internet connection is not working but in actual that is not the case, all other websites open very well. Can someone recommend some solution to this? Is there any other kind of package available which I can download first and then install without requiring internet connection? Responses will be very helpful. The error log is :
PLATFORM VERSION INFO
Windows : 6.2.9200.0 (Win32NT)
Common Language Runtime : 4.0.30319.34014
System.Deployment.dll : 4.0.30319.33440 built by: FX45W81RTMREL
clr.dll : 4.0.30319.34014 built by: FX45W81RTMGDR
dfdll.dll : 4.0.30319.33440 built by: FX45W81RTMREL
dfshim.dll : 6.3.9600.16384 (winblue_rtm.130821-1623)
SOURCES
Deployment url : http://github-windows.s3.amazonaws.com/GitHub.application
Server : AmazonS3
Application url : http://github-windows.s3.amazonaws.com/Application%20Files/GitHub_3_3_3_0/GitHub.exe.manifest
Server : AmazonS3
IDENTITIES
Deployment Identity : GitHub.application, Version=3.3.3.0, Culture=neutral, PublicKeyToken=317444273a93ac29, processorArchitecture=x86
Application Identity : GitHub.exe, Version=3.3.3.0, Culture=neutral, PublicKeyToken=317444273a93ac29, processorArchitecture=x86, type=win32
APPLICATION SUMMARY
* Installable application.
* Trust url parameter is set.
ERROR SUMMARY
Below is a summary of the errors, details of these errors are listed later in the log.
* Activation of http://github-windows.s3.amazonaws.com/GitHub.application resulted in exception. Following failure messages were detected:
+ Downloading http://github-windows.s3.amazonaws.com/Application Files/GitHub_3_3_3_0/PortableGit.7z.deploy did not succeed.
+ Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host.
+ An existing connection was forcibly closed by the remote host
COMPONENT STORE TRANSACTION FAILURE SUMMARY
No transaction error was detected.
WARNINGS
There were no warnings during this operation.
OPERATION PROGRESS STATUS
* [01-Dec-16 11:18:07 AM] : Activation of http://github-windows.s3.amazonaws.com/GitHub.application has started.
* [01-Dec-16 11:18:15 AM] : Processing of deployment manifest has successfully completed.
* [01-Dec-16 11:18:15 AM] : Installation of the application has started.
* [01-Dec-16 11:18:22 AM] : Processing of application manifest has successfully completed.
* [01-Dec-16 11:18:34 AM] : Found compatible runtime version 4.0.30319.
* [01-Dec-16 11:18:34 AM] : Request of trust and detection of platform is complete.
ERROR DETAILS
Following errors were detected during this operation.
* [01-Dec-16 11:27:28 AM] System.Deployment.Application.DeploymentDownloadException (Unknown subtype)
- Downloading http://github-windows.s3.amazonaws.com/Application Files/GitHub_3_3_3_0/PortableGit.7z.deploy did not succeed.
- Source: System.Deployment
- Stack trace:
at System.Deployment.Application.SystemNetDownloader.DownloadSingleFile(DownloadQueueItem next)
at System.Deployment.Application.SystemNetDownloader.DownloadAllFiles()
at System.Deployment.Application.FileDownloader.Download(SubscriptionState subState)
at System.Deployment.Application.DownloadManager.DownloadDependencies(SubscriptionState subState, AssemblyManifest deployManifest, AssemblyManifest appManifest, Uri sourceUriBase, String targetDirectory, String group, IDownloadNotification notification, DownloadOptions options)
at System.Deployment.Application.ApplicationActivator.DownloadApplication(SubscriptionState subState, ActivationDescription actDesc, Int64 transactionId, TempDirectory& downloadTemp)
at System.Deployment.Application.ApplicationActivator.InstallApplication(SubscriptionState& subState, ActivationDescription actDesc)
at System.Deployment.Application.ApplicationActivator.PerformDeploymentActivation(Uri activationUri, Boolean isShortcut, String textualSubId, String deploymentProviderUrlFromExtension, BrowserSettings browserSettings, String& errorPageUrl)
at System.Deployment.Application.ApplicationActivator.ActivateDeploymentWorker(Object state)
--- Inner Exception ---
System.IO.IOException
- Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host.
- Source: System
- Stack trace:
at System.Net.ConnectStream.Read(Byte[] buffer, Int32 offset, Int32 size)
at System.Deployment.Application.SystemNetDownloader.DownloadSingleFile(DownloadQueueItem next)
--- Inner Exception ---
System.Net.Sockets.SocketException
- An existing connection was forcibly closed by the remote host
- Source: System
- Stack trace:
at System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size)
COMPONENT STORE TRANSACTION DETAILS
No transaction information is available.