system says the username or password is wrong that is accurate. That type of error usually shouldn't matter what OS you are using. I do the same at my company (we use Juno Pulse) I have Windows 10 at home. I launch Juno and use my network username and pw and that get me behind the company firewall. Once im past I use RDP to either to my desktop. Servers i just type the name of the server then it lets me login to that server (if i have the rights). My desktop is Windows 7 and i can use IP address or the name is identified the asset number assigned by inventory. I have to use the same username and PW that i use to login ti the VPN.