I m trying to load an IP adress onto an OS7070 PBX. As soon as I input mask 255.255.255.192 the PBX resets to its default IP adress. Has anyone ever come across this thing or whats the way around it, i am trying to spnet 26 sites and this batch of 7070s is the only 1 giving me this prob?

Given the OS7070 looks similar to the OS7030 the first thing that comes to mind is dip switch 6.

When set to on, the OS7030 will revert to the default ip address.