This is a weird situation. I have a desktop PC with Windows 10 and a Windows Server 2012 R2 from which I have mapped shares onto the desktop. Quite often it happens that drives become unavailable or disconnected. Maybe it happens after the server reboot. But when I click on the drive it asks me for credentials, I enter them and it doesn't accept it! When I try via command line I get error 1219 which doesn't make sense, because I mapped those drives using the same username, so no, there is no multiple users as the error says!
C:\Users\vzure>net useNová připojení budou zapamatována.Stav Místní Vzdálené Síťové-------------------------------------------------------------------------------Nedostupné X: \\vitas-server\c$ Microsoft Windows NetworkOdpojen Y: \\vitas-server\e$ Microsoft Windows NetworkOdpojen Z: \\vitas-server\d$ Microsoft Windows NetworkPříkaz byl úspěšně dokončen.C:\Users\vzure>net use x: \\vitas-server\c$Zadejte uživatelské jméno pro vitas-server: administratorZadejte heslo pro vitas-server:Zadejte uživatelské jméno pro vitas-server: administratorZadejte heslo pro vitas-server:Došlo k systémové chybě 1219.
the solution is to remove the mappings and map them again, but I find it quite stupid and illogical...