I am taking the Windows 8 MCSA and as such would like to setup Winodws 8.1 in a lab environment for study/practice. I have Windows Server 2012 R2 Standard installed on a Server and would like to run Windows 8.1 Enterprise in Hyper-V for the purpose of quick rebuilding. I have installed both OSs successfully however if I attempt to RDP into the VM from my desktop running 8.1 Pro I get the message "Logon attempt failed". Google tells me I need to allow RDP through Windows Firewall but this has not worked and I have even tried disabling Windows Firewall both on the Windows 8.1 VM and Win Server 2012. Curiously, I can RDP into the VM from Windows Server 2012.
Any advice would be appreciated.
In addition, please check the security event log on the Windows 8.1 VM and find if there is any error or failed information.
Please also check the local security policy: "Network security: LAN Manager authentication level" on the Windows 8.1 VM and Windows 8.1 desktop, and make sure these two OS can use the same authentication method, for more detailed information, please refer to this article:
I hope this helps.
I know this might be a bit on the obvious side, and apologies if it is, but have enabled "Remote Access" on the Windows 8/8.1 VM? You do this through the System Properties/Remote of the client VM.
It's also a good idea to domain join the client VM, in the virtualized environment, and to have your client management machine, the machine you are using to access the virtualized environment, joined to the same virtualized domain environment. Then ensure that you, as an administrator, are a member of the Remote Management Group as well as the Remote Users' Group, I know there is a bit of replication here but bear with me here; membership of the Domain Administrators Group is normally a default, but check to make sure. Speaking of which, pop your user account into the Administrators Group as well. If you use two separate accounts one in the VM environment and one for your external client management machine, then put both accounts into the groups.
Now you can put yourself as a "Selected" User on the client Windows 8/8.1 VM.
If this doesn't work or only works partially, then there might be a need to look at the Advanced Firewall Rules, but that's something that can be tried later.