The logon attempt failed error while connecting Remote Desktop

Question

I need to connect to a Windows 8.1 Professional (A) version using MS Remote Desktop.

Accessing the machine using RDP on Windows 7 I can access the machine with no problems (B). Accessing the machine using RDP on a Windows 8.1 Home machine I get the following errors (C):

The logon attempt failed error while connecting Remote Desktop

On both machines (B / C / A), antivirus and firewalls are disabled.

It seems a problem related to (C).

Any idea how to solve it?

Solution

I was able to solve this issue adding the computer name before the user name using RDP on Win 8, when instead on Win 7 would works only with the username, example below. I hope it could help others.

On Windows 8.1

ip:
123.123.123
user:
MYPC\myuser
password:
mypasword

On Windows 7
ip:
123.123.123
user:
myuser
password:
mypasword

Comments

[Dave]

Can you ping A from C? Can you access A's shared folders/files from C?

[GibboK]

@Dave I can ping A from C.

[Dave]

And what about the shared folders? Are you RDP'ing via IP or computer name?

[GibboK]

I do not see the shared folders

[Gurpreet Singh]

have you enabled remote access on C?

[GibboK]

yes it is enabled

[rui]

It's really a puzzle... Can it be the username format? Have you tried ".\username" or "username@Workgroup_C"?

[Zapnologica]

You genius, I wasted so much time, trying to play with firewalls and group policies etc. Simple PcName\Username worked like a charm