WD live book 1TO rebooting while uploading

Hi, 

I have problem with my WD live book 1 TO. Often (99/100)  when i try to upload a file from my pc to the WD thru the routeur of my internet box,

the upload begin

the green light blinking

the windows upload stop

the wd shut down and restart and after green light ok and access is good. 

I try without antivirus software and disable firewall no success.

Thanks if you can help me 

Regards

Try setting a static IP for the My Book Live, as a troubleshooting step you can also try connecting the My Book directly to the PC to verify if the same problem happens.