The department Mathematica license has expired and the new license was incompatible with our license server. Staff are in touch with Wolfram to get a new copy of the license.

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UPDATE

[2012-12-03 17:32:54 | Edward Karuna]

An updated license file has been acquired from Wolfram, and the license server is once again in service.

Resolved as of 2012-12-03 17:31:00