Resolved
Enphase has identified the root cause and fixed the problem. We are not seeing any more errors but will continue to monitor in case further action is needed.
Posted 10 Dec at 08:35am EST.
Updated
Enphase has confirmed timeouts and increased latencies and is still investigating the root cause. There was one issue due to migration of one of their microservices but they also have connectivity problems with their database which they are still investigating and developing a fix for. We will keep publishing updates here as soon as enphase makes them available.
Posted 10 Dec at 05:36am EST.

Created
Enphase currently appears to have an API outage (ongoing). We will update here as soon as it is resolved.
Posted 6 Dec at 04:01pm EST.