DuckCorp Dico

Found one definition

1.                 From The Jargon File (version 4.4.7, 29 Dec 2003):
                   
   
   
                   
                     
   notwork
    /not'werk/, n.
       A network, when it is acting flaky or is down. Compare nyetwork. Said
       at IBM to have originally referred to a particular period of flakiness on
       IBM's VNET corporate network ca. 1988; but there are independent reports of
       the term from elsewhere.