Update: 7/16 11:30 UTC
Hosted Build issue are caused due to Azure RDFE issue and few Build VM's had OS disk performance issues and its isolated to a specific host, we engaged Azure team to resolve the issue.
Hosted Build Service is stable and we are not seeing any Queue violations in last 3Hrs. We are watching the system closely and we apologize for the inconvenience caused.
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Updated: 7:00 PM UTC
We engaged Windows Azure partner and we are actively troubleshooting the issue. We are seeing disk error on the build VM’s and we actively working with Windows Azure team to restore the service.
We will keep you posted on the progress of this issue and we apologize for the inconvenience caused.
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We are currently investigating slow build times on TFS hosted Build services. We engaged our partners and we are troubleshooting the issue, we apologize for the inconvenience caused.