CylanceV network requirements Skip Navigation

CylanceV
network requirements

CylanceV
does not require a fixed IP address.
CylanceV
can use a local model (DSC file) and not require an Internet connection to run threat analysis (but does require an Internet connection to validate the license). If the local model is not used, then
CylanceV
will require an Internet connection to use the
Cylance
cloud model. Using the cloud model requires either HTTP over port 80 or HTTPS over port 443. The DNS name for the
Cylance
cloud model is api2.cylance.com.
It is highly recommended to allow HTTPS traffic to the
Cylance
domain or to *.cylance.com over port 443. Contact support with any questions.
When the
CylanceV
executable is launched, an Internet connection is required to validate the license. Once the license has been validated, the Internet connection is no longer needed and you can disconnect the device from the Internet or network, if required. An Internet connection is required to revalidate the license if the
CylanceV
executable is stopped and then restarted or the device running
CylanceV
is turned off and then back on. An authorization failed message displays when launching the
CylanceV
executable if it cannot connect to the Internet and validate the license. To resolve this issue, ensure the device can connect to the Internet and then re-launch the
CylanceV
executable.