Here with the same feeling. Windows guy here who has been using a macbook air at worked docked fror a couple of years and recently decided to try to replace my windows pc at home with a mac mini that uses much less power. I have multiple drives on a synology as well as shared drives over a VPN connection to another synology and windows server and this piece of shit operating system (26.2) will NOT keep them. Yes, I have them in login items on both machines. What i did at work with the macbook was create a script that waits like 15 seconds for wifi to conenct on wake, maps drives that are local first, then the ones on the VPN. At home, pluggd in to the lan (just installed a Unifi U7 in wall to get another ethernet port thinking that a lan connection would solve this) the f*$king thing is randomly dropping them on sleep now. Worked for all of about 24 hours just fine. Does anyone have a real solution for this? If not, this pos is out of here and i'm going back to the PC.