From UTCINFO:
We are currently experiencing so disruption of network access and the technical staff working to restore all service. During this process there may be some disruption of network service for a short period for some users .
Every effort is being made to restore full service as quickly as possible.
This will mean that websites may have trouble loading, including WMS, Worldcat Local, ILLiad, and other library services.
EDIT: As of 11:16am, all networks should be fully operational.