Hi Simone,
Sometimes if the device restart quicker than router, it may not be able to reconnect to the router immediately. But after 1 day (24 hours), it will restart again and reconnec to your router. If not, please send us email to support@netrohome.com with your Netro account registered email? We will have our technician look into this issue.
Thanks,
Wency,
Netro Support