Tonight during a planned non-disruptive maintenance window by our hosting partner in our Dallas datacenter, we experienced a widespread network outage affecting about 400 hosts. This outage would have caused slowness and possibly errors when loading WordPress.com blogs this evening. It lasted for approximately 45 minutes. Everything should be back to normal now and we sincerely apologize for any inconvenience this may have caused. We will continue to explore the root cause of the outage as well as possible solutions with our hosting parter.