After you downloads a multi base configuration that has PLC on both A side   
and B side and TNB with nV-Tool, when restarting PUB on A side and B side   
with the "Reboot controllers" button, it is necessary to adjust the timing. 
 
In a configuration that includes Windows, pay attention to the following   
cases. 
There may be a difference in the shutdown sequence time, or the PUB   
startup timing may be off because the shutdown sequence is not   
executed. 
 
・In Windows on A side and B side, one is logged in but the other is not   
logged in. 
・Shutdown is not executed. (In case of there are applications being edited,   
etc.) 
 
Therefore, shut down on Windows before restarting with the "Reboot   
controllers" button. 
If Windows does not shut down, turn off the PUB with main unit power   
button at the same time as the other side PUB shuts down.