Contact emi-po@cern.ch if you require CERN access pass.
CERN wireless for those without CERN account:
https://network.cern.ch/sc/fcgi/sc.fcgi?Action=TrueVisitorRegistration
Contact person @ CERN:
Name: ESTRELLA CAINGLET
First name: FLORIDA
or
Name: DI MEGLIO
First name: ALBERTO