Commented Issue: Nuget Package Restore Hangs And Then Times Out [2659]

I'm working on an ASP.NET MVC 4 project in VS 2012 with the latest nuget (2.1.31002.9028).
My co-worker has this solution working fine on his computer, but on my computer when I run package restore, it hangs saying "Downloading missing packages..." and then maybe 10 minutes later it times out.

Here's the output from starting VS with: devenv.exe /log "C:\log.txt":
...
<entry>
<record>564</record>
<time>2012/10/05 19:16:27.629</time>
<type>Information</type>
<source>VisualStudio</source>
<description>End package load [Visual Studio Code Snippets Package]</description>
<guid>{0B680757-2C29-4531-80FA-535A5178AA98}</guid>
</entry>
<entry>
<record>565</record>
<time>2012/10/05 19:26:51.212</time>
<type>Error</type>
<source>NuGet Package Manager</source>
<description>The operation has timed out. at System.Net.ConnectStream.Read(Byte[] buffer, Int32 offset, Int32 size)&#x000D;&#x000A; at NuGet.HttpClient.DownloadData()&#x000D;&#x000A; at NuGet.PackageDownloader.DownloadPackage(IHttpClient downloadClient, IPackageMetadata package)&#x000D;&#x000A; at NuGet.PackageDownloader.DownloadPackage(Uri uri, IPackageMetadata package)&#x000D;&#x000A; at NuGet.DataServicePackage.EnsurePackage(IPackageRepository cacheRepository)&#x000D;&#x000A; at NuGet.DataServicePackage.get_FrameworkAssemblies()&#x000D;&#x000A; at NuGet.PackageExtensions.HasProjectContent(IPackage package)&#x000D;&#x000A; at NuGet.PackageWalker.GetPackageTarget(IPackage package)&#x000D;&#x000A; at NuGet.PackageWalker.GetPackageInfo(IPackage package)&#x000D;&#x000A; at NuGet.PackageWalker.ProcessPackageTarget(IPackage package)&#x000D;&#x000A; at NuGet.PackageWalker.Walk(IPackage package)&#x000D;&#x000A; at NuGet.InstallWalker.ResolveOperations(IPackage package)&#x000D;&#x000A; at NuGet.PackageManager.Execute(IPackage package, IPackageOperationResolver resolver)&#x000D;&#x000A; at NuGet.PackageManager.InstallPackage(IPackage package, FrameworkName targetFramework, Boolean ignoreDependencies, Boolean allowPrereleaseVersions)&#x000D;&#x000A; at NuGet.PackageManager.InstallPackage(IPackage package, Boolean ignoreDependencies, Boolean allowPrereleaseVersions)&#x000D;&#x000A; at NuGet.PackageManager.InstallPackage(String packageId, SemanticVersion version, Boolean ignoreDependencies, Boolean allowPrereleaseVersions)&#x000D;&#x000A; at NuGet.VisualStudio.PackageRestoreManager.&lt;RestoreMissingPackages&gt;b__2()&#x000D;&#x000A; at System.Threading.Tasks.Task.InnerInvoke()&#x000D;&#x000A; at System.Threading.Tasks.Task.Execute()</description>
</entry>

My co-worker is on the same network as I am, and my internet connection is fine.

Any ideas how I can further troubleshoot this? It's preventing me from being able to use NuGet at all, which means I can't build solutions that use package restore.

Thanks,
Kevin Berridge
Comments: What happens when you go here in your browser: https://nuget.org/api/v2/package/EntityFramework/5.0.0