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Intermittent connectivity issues from AppVeyor build environment #3961
Starting from last Thursday, May 11 we started seeing a lot of timeouts while restoring NuGet packages on build worker VMs in our primary environment. The environment is located in Rackspace DFW3 data center, San Antonio, TX. We are not experiencing the issues on VMs running in Google Compute Engine cloud.
Could it be that requests from our environment are being throttled/dropped somehow (it uses a single outgoing IP address)? Could it be related to recent issues in NuGet's CDN provider? Do you see dropped requests on your side coming from our IP?
Any help with this ongoing issue is highly appreciated!
WinMTR report for that location:
referenced this issue
May 16, 2017
Still failing for me (eg. https://ci.appveyor.com/project/cakecontrib/cake-prca-website/build/1.0.163)
Hey! Glad to hear everything is working ok.
As far as we can tell, it appears to have been an intermittent network issue with rackspace.
Please let us know and reopen the issue if you see more problems like this going forward.
I am also experiencing the same issue...packet loss when connecting out to https://api.nuget.org. When we run a continuous ping from one of our servers, we can see that there are timeouts occurring. A side by side ping test out to google 220.127.116.11 and did not see any timeouts.
The following traceroute was executed multiple times and we see timeouts occurring at 18.104.22.168 which belongs to Edgecast:
PS C:\Users\Rack> tracert api.nuget.org
Tracing route to cs9.wpc.v0cdn.net [22.214.171.124]
1 2 ms 2 ms 1 ms 126.96.36.199