Re: [rdesktop-users] VirtualBox Failed to negotiate protocol, retrying with plain RDP.

[le d. <le....@la...>]

Le 21/03/2014 11:01, le dahut a écrit :
> Le 18/03/2014 17:24, le dahut a écrit :
>>
>>
>> Le 18/03/2014 16:42, Henrik Andersson a écrit :
>>>> I use
>>>>      "Version 1.8.1. Copyright (C) 1999-2011 Matthew Chapman et al."
>>>>
>>>> and
>>>>      Oracle VM VirtualBox Manager 4.3.8
>>>>
>>>> After enabling "remote display" in a virtual machine, when I try to
>>>> connect to it I get the message :
>>>>      "Failed to negotiate protocol, retrying with plain RDP."
>>>>
>>>> Are you aware of this bug ?
>>>>
>>>
>>> That doesn't seem to be a bug, does the VirtualBox rdp server
>>> implementation support protocol negotiation ? Its a normal message when
>>> the RDP server rejects TLS/NLA negotiation and plain RDP is used as
>>> fallback.
>>>
>>>
>>
>>
>> The problem is that I have no control over the remote machine, keyboard
>> and mouse does not work.
>>
>>
>> I can only say that with Version 1.7.0 everything works fine and with
>> Version 1.8.1 it does not (with in both cases VirtualBox 4.3.8).
>
> It looks like since version 1.8 rdesktop is known to be incompatible
> with VirtualBox. Is this deliberate ?
>
> http://remotebox.knobgoblin.org.uk/news.cgi

Does someone have experienced the same problem or am I the only one ?

Are there some ways to explore to debug the problem ?

It is really a problem for me since I cannot administrate my virtual 
machines anymore.

Regards.
Klaas