Mybooklive is not connecting after ugrade

Hi
I upgrdaed the software on mybooklive lately. After the upgrade I was able to access the shared drive. I even when to the router and found out that the drive is not even connected to the network. (there was no IP address allocated to thed rive). Can anyone help
Thanks!

you didn’t mention if the mybook did a full power off reboot after the upgrade.