My Book WE: Changed to Static IP -Unable to Connect

I was running the HD  on DHCP.  I changed to to Static and assigned an IP with the Proper Subnet.  Now the the HD is not visible in the network and the discovery tool cannot find it either.  Any suggestions will be greatly appreciated

Did you make sure the ip assigned is within the range for you network ?

You can try connecting the drive directly to the pc and see if it connects or reset the drive and retry.