Many devices offer encryption nowadays. Hand on heart: Is this feature really used when it should be used ?
Our experiences show the opposite. The environment is assumed as safe and secure. Who has enough time to do it, switch the encryption on, handle the keys, etc.
We offer a network pre-configuration here in our test lab, right after the hardware manufacturing and test. These parameters / keys can be:
It is ensured to get the same preconfigured devices if mroe devices are needed / ordered in the future. Just unpack, switch it on and operate !