said by stevek1949:I just copied the config from the Rev D to the Rev I, released the DHCP address, powered off, installed the new, turned it on. Worked first time. Did not reboot the ONT.
This is a surprise, since the MAC address or something else in the router that created the config file is specified in the config file. In recent versions of firmware (last 2 years at least), the router restoring the config has recognized the difference and pops up an error message to the effect of incompatible file.
Since the config file is encrypted, I cannot compare the contents.
A config file, in my experience can only be reloaded on the specific router, not just the model of router, that created it. Going from D to I is really a surprise.