protocol security negotiation or connection failure

[Hakuryyuu]

Hello,

After hours of trying I finally got FreeRDP-Webconnect compiled.
I executed the script on a Ubuntu 14.04 LTS machine and compiled.

When I use the default config (with SSL parameters) I get the following Error:
ERROR: EHSServer::EHSServer: EHS not compiled with SSL support. Cannot create HTTPS server.

So I removed SSL from the config so I could atleast test WebConnect.
After removing it, wsgate starts up and I can access the Web Interface.

I set up a Windows Server 2012 R2 VM and connected with my local Microsoft RDP without any issues
The pre-compiled wsgate for Windows also works with with TLS Disabled/Enabled.

But when I try using the Linux Version I keep getting the following Errors:
connected to 192.168.154.131:3389 unexpected pubKeyAuth buffer size: 0 Could not verify public key echo! Authentication failure, check credentials. If credentials are valid, the NTLMSSP implementation may be to blame. Error: protocol security negotiation or connection failure

I have set nonla = true NTLM is disabled on both client and Server.

Any ideas/help?
Thanks in advance!