Update: After further investigation, we found that a power disruption caused some servers to go down or fail. It is unlikely that the leap second directly affected VCN's services.
On Saturday, June 30th, 2012, VCN's web site, other WebGUI sites, and VCN's dial-up service went down. Due to the time that the problem occurred, it was probably caused by a bug related to the leap second on Saturday, June 30th, 2012. Email, mailing lists, and non-WebGUI web sites such as HTML and PHP sites were not affected.
Afterwards, the WebGUI server was unable to start due to a hardware issue. Dial-up service was restored on Sunday, July 1st but some users still had issues connecting to sites outside of VCN. At this time there are no known issues related to dial-up service.
A WebGUI replacement server has been created and all web sites have been restored as of Wednesday, July 4th, 2012 at 1pm.