Locate the description label of your router. In most cases it is on the bottom of the device.
Cradlepoint Series 3 routers manufactured before December 2018 will use the last 8 digits of the MAC address as the default password. The default password is case sensitive. In the example "442df501", the "d"and "f" should be lowercase.
Cradlepoint routers manufactured December 2018 or later will use the full 14-digit serial number as the default password. The default password is case sensitive. In the example "MM180456800037", the letters "MM" should be uppercase.
If the default password does not appear on the label or is unreadable, see Troubleshooting.