Update - We'll be doing maintenance on Friday, May 26, 6:00-8:00 PM PDT. During this time all builds will be run on GCE environment, so expect 3-4 minutes delay before the build starts.
May 24, 20:05 PDT
Identified - Working with engineers in our data center identified some potential bottlenecks with existing network implementation. We are going to do maintenance later this week to upgrade networking hardware. We'll notify about maintenance time later.
May 22, 09:50 PDT
Investigating - We've noticed git clone time from GitHub could be 2-3x longer for some projects with large repositories running on Rackspace cloud. We are investigating. Sorry for the inconveniences.
May 18, 18:55 PDT
AppVeyor CI ? Operational
Build environment ? Operational
NuGet.org Operational
GitHub Degraded Performance
BitBucket Operational
VSTS ? Operational
Operational
Degraded Performance
Partial Outage
Major Outage
Maintenance
Past Incidents
May 27, 2017

No incidents reported today.

May 26, 2017

No incidents reported.

May 25, 2017

No incidents reported.

May 23, 2017

No incidents reported.

May 21, 2017

No incidents reported.

May 20, 2017

No incidents reported.

May 19, 2017

No incidents reported.

May 17, 2017

No incidents reported.

May 16, 2017
Resolved - The issue has been fixed: https://github.com/NuGet/NuGetGallery/issues/3961#issuecomment-301917548
May 16, 16:43 PDT
Identified - The root cause of this issue is NuGet's CDN. We are currently working with NuGet team to resolve the issue (https://github.com/NuGet/NuGetGallery/issues/3961) and NuGet team is working with their CDN provider. Sorry for the inconveniences.
May 16, 11:44 PDT
Update - Some preliminary investigation makes us believe that the root cause is NuGet's CDN in US region as explicit resolving of api.nuget.org to a different CDN region (EU or TW for example) fixes the issue.
May 15, 17:14 PDT
Investigating - Starting on Thursday, May 11 we started seeing intermittent issues with downloading NuGet packages on our primary environment.

While we are investigating the root cause make sure your builds are using nuget 3.5.0 which is installed by default on build worker VMs and available in PATH. NuGet 3.5.0 has better support for timeouts/retries management. Also, to retry nuget restore use `appveyor-retry` script like that:

    appveyor-retry nuget restore <path-to-solution>

May 15, 10:55 PDT
May 14, 2017

No incidents reported.

May 13, 2017

No incidents reported.