Please register your PTP units here
http://www.cambiumnetworks.com/support/ptp/unit-registration
The purchase date will be used to calculate the standard 12 month warranty.
If you have purchased an extended, or an advanced Replacement warranty, then these can be activated here
http://www.cambiumnetworks.com/support/ptp/activate-warranty
Any extended warranty period is added onto any existing warranty entitlement.