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* In January 2013, emergency maintenance was done at Virginia Tech's uplink in Ashburn, but users were not informed in advance of the potential downtime. This initially took out VT's edge IPv4 access for several hours, and later resulted in intermittent routing issues at the BGP level until the next morning.
* Like most administrative university offices, CNS is often regarded as having much bureaucracy. For example, the processes for obtaining SSL certificates or a DNS entry directly under "vt.edu" are especially tedious.
* CNS services such as VT-Wireless (the secure wireless network) require use of MS-CHAPv2, which is proven to be very insecure.<ref>{{cite news| title = Wifi Security| url = https://www.hokieprivacy.org/wifi/| work = Hokie Privacy| accessdate = 7 October 2015}}</ref>
== References ==