offline manegment

i have a few device in my network but the problem is its all in privet network and cant get internet .. is tehr any way to manage them centrly
every solution of cambium is cloud based ....
the few offline one dont work at all tryed all but nothing
even cambium discovery dont discovers cambium device but it detect mikrotik device faster
how ppl are working with cambium any help plz

Use cnmaestro onpremise

As noted above, cnMaestro is available in both the cloud version or as a private instance, known as cnMaestro on-premises.

You can read the User Guide and installation materials (as well as download the image files) from here:

https://support.cambiumnetworks.com/files/cnmaestro/