Can't activate Visual Studio 2017 Community

[h725rk]

Hello,

I use Visual Studio 2017 Community to learning programming in SharePoint 2016.
I have a problem to activate my Visual Studio 2017 Community.

When I will sign in to my account, there comes a message: The online service is not running.
I am behind a proxy. I have configure the file devenv.exe.config with the following options:

<system.net>
<settings>
<ipv6 enabled="true"/>
</settings>
<defaultProxy enabled="true" useDefaultCredentials="true">
<proxy bypassonlocal="True" usesystemdefault="True" />
</defaultProxy>
</system.net>

I tested it, and the problem is not resolved. After this I changes the devenv.exe.config to the following:

<defaultProxy enabled="true" useDefaultCredentials="true">
<proxy bypassonlocal="True" usesystemdefault="True" proxyaddress="http://proxyserver:port" />

The problem is not resolved, too.

I analyze the logfile. The problem is Visual Studio 2017 return 407: Proxy Authentication Required --> No credentials are available in the security package.

Here is the log:

07/13/2017 08:33:47 : Error : There was a problem getting the access token using the prompt with UI flow. Error: 'System.Net.Http.HttpRequestException: An error occurred while sending the request. ---> System.Net.WebException: The remote server returned an error: (407) Proxy Authentication Required. ---> System.ComponentModel.Win32Exception: No credentials are available in the security package
at System.Net.SSPIWrapper.AcquireDefaultCredential(SSPIInterface SecModule, String package, CredentialUse intent)
at System.Net.NTAuthentication.Initialize(Boolean isServer, String package, NetworkCredential credential, String spn, ContextFlags requestedContextFlags, ChannelBinding channelBinding)
at System.Net.NTAuthentication.InitializeCallback(Object state)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Net.NTAuthentication..ctor(Boolean isServer, String package, NetworkCredential credential, String spn, ContextFlags requestedContextFlags, ContextAwareResult context, ChannelBinding channelBinding)
at System.Net.NTAuthentication..ctor(String package, NetworkCredential networkCredential, SpnToken spnToken, WebRequest request, ChannelBinding channelBinding)
at System.Net.DigestClient.XPDoAuthenticate(String challenge, HttpWebRequest httpWebRequest, ICredentials credentials, Boolean preAuthenticate)
at System.Net.DigestClient.DoAuthenticate(String challenge, WebRequest webRequest, ICredentials credentials, Boolean preAuthenticate)
at System.Net.DigestClient.Authenticate(String challenge, WebRequest webRequest, ICredentials credentials)
at System.Net.AuthenticationManagerDefault.Authenticate(String challenge, WebRequest request, ICredentials credentials)
at System.Net.AuthenticationState.AttemptAuthenticate(HttpWebRequest httpWebRequest, ICredentials authInfo)
at System.Net.HttpWebRequest.CheckResubmitForAuth()
at System.Net.HttpWebRequest.CheckResubmit(Exception& e, Boolean& disableUpload)
--- End of inner exception stack trace ---
at System.Net.HttpWebRequest.EndGetRequestStream(IAsyncResult asyncResult, TransportContext& context)
at System.Net.Http.HttpClientHandler.GetRequestStreamCallback(IAsyncResult ar)
--- End of inner exception stack trace ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd(Task task)
at Microsoft.IdentityService.Clients.ActiveDirectory.HttpClientWrapper.<GetResponseAsync>d__29.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd(Task task)
at Microsoft.IdentityService.Clients.ActiveDirectory.AdalHttpClient.<GetResponseAsync>d__21`1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.IdentityService.Clients.ActiveDirectory.AdalHttpClient.<GetResponseAsync>d__20`1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.IdentityService.Clients.ActiveDirectory.AcquireTokenHandlerBase.<SendHttpMessageAsync>d__68.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.IdentityService.Clients.ActiveDirectory.AcquireTokenHandlerBase.<SendTokenRequestAsync>d__65.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd(Task task)
at Microsoft.IdentityService.Clients.ActiveDirectory.AcquireTokenHandlerBase.<RunAsync>d__55.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.IdentityService.Clients.ActiveDirectory.AuthenticationContext.<AcquireTokenCommonAsync>d__56.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.IdentityService.Clients.ActiveDirectory.AuthenticationContext.<AcquireTokenAsync>d__49.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd(Task task)
at Microsoft.Developer.IdentityService.AccountProvider.NetworkServicesImpl.<AcquireTokenWithPromptAsync>d__9.MoveNext()'

That really strange, because when I click on sign in, in the upper right corner, there comes a proxy-windows. I authenticated and there is an little intern browers, where I can login in the Microsoft Page with my crendtials. After this, there are the errors:





After this errors, I run a TCPdump and the result is, that Visual Studio not sends any credentials.

I have used two types of the proxy. A diggest and a basic proxy. But nothing.
It won't help to used "Add an Account" under "File --> Account Settings", because there are the errors, too. I can't activate this license directly, because the virtual machine is in a closed network with no directly internet.

I hope anyone can help me to activate Visual Studio 2017 Community, because I need this.

Best regard,
Robert

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