Update: UltraVNC 1.4.3.6 and UltraVNC SC 1.4.3.6: viewtopic.php?t=37885
Important: Please update to latest version before to create a reply, a topic or an issue: viewtopic.php?t=37864

Join us on social networks and share our announcements:
- Website: https://uvnc.com/
- GitHub: https://github.com/ultravnc
- Mastodon: https://mastodon.social/@ultravnc
- Facebook: https://www.facebook.com/ultravnc1
- X/Twitter: https://twitter.com/ultravnc1
- Reddit community: https://www.reddit.com/r/ultravnc
- OpenHub: https://openhub.net/p/ultravnc

Server sometimes rejects connection

Post Reply
avess
Posts: 5
Joined: 2016-10-26 20:21

Server sometimes rejects connection

Post by avess »

Hi,

I have two computers. Computer1 is connected to my home network and also forwards port 5905 to port 5900 on Computer2 which is connected only to Computer1. On the Computer2 there is Ultra VNC server installed and I am accessing this computer2 from my home network using domainname:5905. It works, but in some time period (random) the VNC server rejects incoming connection, it is accepted usually after several (sometimes too many) attempts. Below you can see logs from rejected connection and from successful. In between there is no change in configuration, started application etc.

The difference in logs between rejected and accepted connection is in this message ".\vncserver.cpp : client 192.168.0.2 rejected due to blacklist entry". Does anybody knows what does it actually mean and how to solve it? There is not any blacklist configured on Computer2 VNC server.

REJCETED:
Tue Oct 25 11:23:38 2016
.\vsocket.cpp : VSocket() m_pDSMPlugin = NULL
.\vncsockconnect.cpp : accepted connection from 192.168.0.2
.\vncserver.cpp : AddClient() started
.\vncclient.cpp : vncClient() executing...
.\vncclient.cpp : TEST 4
.\vncclient.cpp : client connected : 192.168.0.2 (1)
.\vncserver.cpp : AddClient() done
.\vncclient.cpp : DSMPlugin Pointer to socket OK
.\vncclient.cpp : m_ms_logon set to false.\vncclient.cpp : negotiated version
Entered InitAuthenticate
c:\documents and settings\jbekx\my documents\rapid\ultravnc\trunk\winvnc\winvnc\vncPasswd.h : PASSWD : ToText called
.\vncserver.cpp : client 192.168.0.2 rejected due to blacklist entry
.\vncservice.cpp : @@@@@@@@@@@@@ GetCurrentUser - UserNAme found: User
.\vncserver.cpp : removing unauthorised client
.\vncserver.cpp : RemoveClient() done
.\vncclient.cpp : ~vncClient() executing...
.\vncclient.cpp : deleting socket
.\vsocket.cpp : closing socket


ACCEPTED:
Tue Oct 25 11:23:40 2016
.\vsocket.cpp : VSocket() m_pDSMPlugin = NULL
.\vncsockconnect.cpp : accepted connection from 192.168.0.2
.\vncserver.cpp : AddClient() started
.\vncclient.cpp : vncClient() executing...
.\vncclient.cpp : TEST 4
.\vncserver.cpp : AddClient() done
.\vncclient.cpp : client connected : 192.168.0.2 (1)
.\vncclient.cpp : DSMPlugin Pointer to socket OK
.\vncclient.cpp : m_ms_logon set to false.\vncclient.cpp : negotiated version
Entered InitAuthenticate
c:\documents and settings\jbekx\my documents\rapid\ultravnc\trunk\winvnc\winvnc\vncPasswd.h : PASSWD : ToText called
.\vncserver.cpp : client 192.168.0.2 verifiedHost 0 prior to adjustment
.\vncserver.cpp : client 192.168.0.2 verifiedHost 0 after adjustment
.\vncservice.cpp : @@@@@@@@@@@@@ GetCurrentUser - UserNAme found: User
password authentication.\vncclient.cpp : Leaving InitAuthenticate
.\vncdesktop.cpp : initialising desktop handler
--The specified module could not be found.
.\vncDesktopSW.cpp : SWinit


Thank you very much for help.
Post Reply