Resolved
This incident has been resolved.
Monitoring
The hosts involved have been repaired. We also had some issues with our upstream ISP which have now been resolved.
Identified
We've isolated the issue to a failed NIC on one of our controller nodes. We're replacing the NIC.
Investigating
Our network in San Francisco has lost internet connectivity. We're currently investigating the cause. This only affects 1080Ti instances, all other GPU types are fine.