Server on Nvidia Shield constantly showing unlicensed.

Hello, I have a server license on an nvidia Shield. It seems like every week or so it "loses" the license and I need to copy it over again on the Client PC. On the Shield it says, "This Server is unlicensed."

It's happened at least 10 to 15 times over the last 6 months. Is there anything I need to do on the Shield to prevent this from happening?

Thanks.