MathSciNet is not currently available. I am working with the vendor to restore access.
However, meanwhile, from OFF-CAMPUS, you can access it via CUNY’s E-resource list here: http://www.cuny.edu/libraries/j-and-r.html – scroll down to the “Science and Health” section. You will need to authenticate using the Library number that is on our ID cards. Users must have activated their cards for this to work. On-campus this will not work.
Please let me know if you have any questions.