TeamViewer Server does not work on VirtualBox

My configuration

- TeamViewer run on Fedora 26, running on virutal box, running on Windows 10.

When I want to connect from TeamViewer to another platform , it works.

When I want to connect to this teamviewer , it fails (WaitForConnectFailed). When looking in termlog , I see : 

2017/07/24 02:36:55.534  1192 4144130880 S   Activating Router carrier
2017/07/24 02:36:55.535  1192 4144130880 S   Starting desktop process for ID 713489184 in session 0
2017/07/24 02:36:55.535  1192 4144130880 S   CTerminalServer::getPathToApplicationExe: executable is /opt/teamviewer/tv_bin/TeamViewer_Desktop
2017/07/24 02:36:55.536  1192 4144130880 S   Filename for desktop process is /opt/teamviewer/tv_bin/TeamViewer_Desktop
2017/07/24 02:36:55.536  1192 4144130880 S   starting desktop in session XSession: 0 [SysSession 0 [type=1 tty=2 pseudotty=0 info=1 id= user=root state=user active=1 reliable=0]]
2017/07/24 02:36:55.536  1192 4144130880 S   TerminalServer: Starting desktop as user root (0)
2017/07/24 02:36:55.567  1192 4144130880 S!  XSession[0]: Unable to get XAuth
2017/07/24 02:36:55.567  1192 4144130880 S   XClient[:0]: Unable to open XAuthority file "" (err=2)
2017/07/24 02:36:55.567  1192 4144130880 S!  XSession[0]: XAuth information missing or incorrect, cannot open display, session aborted
2017/07/24 02:36:55.567  1192 4144130880 S!! TerminalServer: Missing prerequisites for starting Desktop!, Errorcode=2
2017/07/24 02:36:55.568  1192 4144130880 S   IConnection[10]::HandleWrite(): Send failed with Error: 9 Bad file descriptor, bytes_transferred=0
2017/07/24 02:36:55.568  1192 4144130880 S!  CTcpConnectionBase[10]::ClearSendQueueWithError(): SendQueue is not empty. Throwing away 1 commands
2017/07/24 02:36:55.568  1192 4144130880 S   TcpCarrierBase[10]::HandleWrite(): Error 9 (Bad file descriptor), count 1

(to avoir permission issue : teamviewer run as root)

Thanks in advance for help!

Philippe