Please reboot again and use your serial cable to see what on.
check ifconfig for the network setting.
change /persistent/etc/network.conf and /persistent/etc/asterisk/rc_org.conf, the DHCP to yes
reboot to see if it works.
I can't remember SVN 456 with DHCP enable by default. But always prepare the IP01 return to default 192.168.1.100
On hand get a serial cable to look at the console output from IP01
Glad to hear you are working well. Our advice is to set to svn437 at most. After that, there are some changes in the conf files such as extensions.conf move to extensions_custom.conf, etc. I am not sure the impact.
GUI has been rewritten for even faster response since SVN 432.
It allows web unpload of firmware i.e. just like usual browser to upload a file
After that, it has extensions_custom.conf.