I have to bother you again with another question. I am using Virtualhere on 10 Raspberry Pis. Seven are RasPis 2B+ and the other three are RasPis 3 B 1.2. All are connected fine over a VPN to a windows machine. All are on auto-use, to enable a scheduled task on the windows machine to download data once an hour. That works absolutely fine for the Raspberry Pi 2. But all three Raspberry Pi 3 are losing the "auto-use" option after a while, and therefore no data is downloaded.
Do you have an idea what could cause this and how I might be able to fix that?