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RealVNC won't connect to Win7

    Question

  • We use a free version of RealVNC to connect remotely to the computers on our domain.  I'm testing out a Win7 laptop but I can't seem to get RealVNC to work.  I can install it just fine and connect from Win7 to the other computers on the domain.  I can't however, connect from any other computer to the Win7 machine.  All I get is a black screen.

    Can anyone help me?
    Friday, January 29, 2010 6:01 PM

Answers

  • I use Ultra server server and viewer on win 7
    You MUST allow the ultraVNC server thru the windows firewall.

    I do not "set the password" I use the windows logon feature in UltraVNC (set up users who login).

    works great..I JUST NOW installed in on a win 7 home box using goto..so a young lady could work on her home computer from her mom-in-laws.
    works great.
     Two things here.
     
    I installed in windows compatibility (Xp Sp2).

    The "Set Password" feature has failed for me on vista when the user was not admin in the pass so I stick with the windows logon feature.
    • Marked as answer by jkloth1 Monday, February 01, 2010 9:43 PM
    Monday, February 01, 2010 8:12 PM
  • Remote Desktop disconnects any users that may be logged in (Unless it just isn't configured right, I don't know I haven't looked at settings).  We can't have users being disconnected.

    It just simply locks the session and allows the user connecting to view the desktop. When the person disconnects, the user can log back in. Using Systems Management Server is one I've suggested may provide you with a better solution than VNC.

    1. You are not using any extra overhead, managing a secondary service.
    2. Systems Management Server is a good way to manage systems and services along your network while providing valuable tools.

    However, I understand why you would not use Remote Desktop based on your response.

    I would give Bubba's solution a shot for Installing in compatibility mode. Also try not using the Set Password feature, see if that works.

    Can you provide some screen shots of the settings you are using for the VNC Server and the VNC Client?

    Edit: doing some research, take a look at the following link: http://forum.ultravnc.info/viewtopic.php?p=55897 http://forum.ultravnc.info/viewtopic.php?p=58493
    • Marked as answer by jkloth1 Monday, February 01, 2010 9:43 PM
    Monday, February 01, 2010 8:34 PM

All replies

  • Upon upgrading to RealVNC version 4.1.3 I now get an error message when trying to connect to the Win7 computer.  I upgraded both the Win7 machine and my XP machine to version 4.1.3

    The error is exactly as follows:

    "read: Connection reset by peer (10054)
    Do you wish to attempt to reconnect to <computer_name>?"

    Clicking Yes only brings up the error message again.  And, well, obviously clicking No cancels the connection.

    Can anyone please help?
    Friday, January 29, 2010 7:39 PM
  • Couple questions:

    1. Is the firewall disabled on the Windows 7 Machine?
    2. Have you tried connecting to the Windows 7 machine using IP Address?
    3. Did you install VNC on an account with Local Administrator access, and the server (VNC) is running in the taskbar?
    Friday, January 29, 2010 9:43 PM
  • I've configured the firewall to allow VNC.  I installed VNC with my system administrator account so yes it's installed with Local admin access.  I've checked that the VNC server is running also.  It doesn't show up in the system tray, but I checked in Services and VNC Server is set to automatic and the status says started.

    What do you mean connecting to Win7 by IP exactly?

    Do you mean click Run... type \\ip_address?  I just tried that and it works.
    Friday, January 29, 2010 10:06 PM
  • Hey jkloth1

    Tim was asking if you used the ip address to access with VNC...

    Real VNC is cool works great..I use UltraVNC a good bit.

    A new product from Microsoft works very well, it is a "mesh network" of sorts which allows for remote access, folder sharing and folder sync
    Of course it is FREE.

    https://www.mesh.com/welcome/default.aspx
    Friday, January 29, 2010 11:05 PM
  • Great idea Bubba. But if you still wish to work with VNC, keep reading :D

    To get the ip of the Windows 7 machine, follow these steps:

    1. Click Start
    2. Click Run
    3. Type CMD, hit enter.
    4. Type ipconfig /all, hit enter.
    5. You will see a listing of network adapters enabled and disabled. Find your adapter and write down the IPv4 address. If you need to post a screenshot to determine which is your adapter, do so.
    6. Now try to ping it. Close that command window
    7. Follow steps 1-3.
    8. Type ping ip address , where ip address is the IPv4 number you wrote down separated by periods.

    If the PING results with success, then VNC is setup incorrectly. Post back your results :)
    One last thing, make sure you followed my other piece of advice:

    Did you install VNC on an account with Local Administrator access, and the server (VNC) is running in the taskbar?
    Friday, January 29, 2010 11:39 PM
  • Yes VNC is on an account with local admin privileges and the VNC server is running.

    I can ping the Win7 machine but VNC still won't work (I'm a little confused as to how this determines if VNC is set up properly).  I've set firewalls to allow VNC connections.  Is there some other setting in Win7 that's perhaps blocking VNC?

    Regarding UltraVNC and the Microsoft tool, will they work with RealVNC?  Can I connect to and from RealVNC with them?  Probably not, huh?
    Monday, February 01, 2010 2:28 PM
  • I was doing a little digging on the two other tools you guys referenced.

    Live Mesh sounds like way more than what I'm looking for.  We don't need file syncing and all that other stuff.  We just need to be able to view another workstation on our network and control it if necessary.

    UltraVNC isn't working, either.  I installed it on both Win7 and WinXP and it just doesn't want to cooperate.  Using XP to connect to 7 doesn't work.  I get an error saying the server doesn't have a valid password enabled.  I made sure I configured one.  Connecting to XP from 7 works....for about 5 seconds.  Then it tells me that VNC Viewer has stopped working.

    I also tried using UltraVNC on WinXP and RealVNC on Win7, which works exactly the same way as RealVNC.  I can connect to the XP machine from Win7 but not vice versa (I get the same error: Server closed connection).
    I tried Ultra on 7 and Real on XP and I get the same thing as with Ultra on both.

    Also regarding the use of IP address to connect, you mean on the popup where it asks what server to connect to?  It doesn't matter if I use the computer name or the IP I still get the same results.
    Monday, February 01, 2010 4:15 PM
  • Okay a couple things. To answer some of your questions:

    I can ping the Win7 machine but VNC still won't work (I'm a little confused as to how this determines if VNC is set up properly).

    This is because we need to make sure there's an open connection. What's the point of VNC not working when the most basic ping commands don't? That's why we test. The test also provided us with something valuable: the computers can see each other. It's one or the other at this point: VNC is not configured properly, or there is a service on EITHER machine that is causing a problem.

    Using XP to connect to 7 doesn't work.  I get an error saying the server doesn't have a valid password enabled.  I made sure I configured one.  Connecting to XP from 7 works....for about 5 seconds.  Then it tells me that VNC Viewer has stopped working.

    ..


    I also tried using UltraVNC on WinXP and RealVNC on Win7, which works exactly the same way as RealVNC.  I can connect to the XP machine from Win7 but not vice versa (I get the same error: Server closed connection).

    I tried Ultra on 7 and Real on XP and I get the same thing as with Ultra on both.


    Using two VNC clients may 'work the same way' in terms of what they do, but they are fundamentally different. They are created differently. I am no programmer, but having two products try to connect to each other is not really attempting to solve any problems other than criss-cross the intended connections either VNC is trying to make.

    But I am curious..

    • If all you need is to view the other machines on the network, why not use Remote Desktop Connection? You can also use Systems Management Server if you need to control while not locking the user out of the session. 
    • Have you tried solely just using UltraVNC on both machines? I know you've tried using RealVNC on both.
    • We may need to boil down to the basics. What kind of network is this? Do you have firewall solutions on both systems? Like McAfee or otherwise? Are the applications both telling the firewall (both Windows Firewall and whatever solution you have) that you need to make VNC an exception so that ports are open?
    In terms of using VNC, there is a program or a service blocking something from VNC. If you are on the same network, and have allowed all the necessary settings - then there should be no reason it doesn't work. I have setup VNC on a machine and was able to remotely connect to it by doing the following:

    1. Forward ports on software firewall (Windows Firewall/Anti-virus solution)
    2. Forward ports on router.
    3. Test ports.
    4. Install VNC server on machine I want to remotely manage .
    5. Run the VNC Client on the machine I am managing from .
    6. Make sure I can connect to the static IP my computer was given with VNC Server.
    7. If I cannot, I run through these steps one more time.
    Monday, February 01, 2010 5:58 PM
  • If all you need is to view the other machines on the network, why not use Remote Desktop Connection? You can also use Systems Management Server if you need to control while not locking the user out of the session.
    Remote Desktop disconnects any users that may be logged in (Unless it just isn't configured right, I don't know I haven't looked at settings).  We can't have users being disconnected.

    I've tried UltraVNC on both, I explained that in my last post.  Using XP to connect to 7 doesn't work.  I get an error saying the server doesn't have a valid password enabled.  I made sure I configured one.  Connecting to XP from 7 works....for about 5 seconds.  Then it tells me that VNC Viewer has stopped working.

    The two computers are both on a domain.  We don't have any other firewall software installed on the computers.  Windows firewall is configured on both systems to allow VNC. 
    Monday, February 01, 2010 7:04 PM
  • I use Ultra server server and viewer on win 7
    You MUST allow the ultraVNC server thru the windows firewall.

    I do not "set the password" I use the windows logon feature in UltraVNC (set up users who login).

    works great..I JUST NOW installed in on a win 7 home box using goto..so a young lady could work on her home computer from her mom-in-laws.
    works great.
     Two things here.
     
    I installed in windows compatibility (Xp Sp2).

    The "Set Password" feature has failed for me on vista when the user was not admin in the pass so I stick with the windows logon feature.
    • Marked as answer by jkloth1 Monday, February 01, 2010 9:43 PM
    Monday, February 01, 2010 8:12 PM
  • Remote Desktop disconnects any users that may be logged in (Unless it just isn't configured right, I don't know I haven't looked at settings).  We can't have users being disconnected.

    It just simply locks the session and allows the user connecting to view the desktop. When the person disconnects, the user can log back in. Using Systems Management Server is one I've suggested may provide you with a better solution than VNC.

    1. You are not using any extra overhead, managing a secondary service.
    2. Systems Management Server is a good way to manage systems and services along your network while providing valuable tools.

    However, I understand why you would not use Remote Desktop based on your response.

    I would give Bubba's solution a shot for Installing in compatibility mode. Also try not using the Set Password feature, see if that works.

    Can you provide some screen shots of the settings you are using for the VNC Server and the VNC Client?

    Edit: doing some research, take a look at the following link: http://forum.ultravnc.info/viewtopic.php?p=55897 http://forum.ultravnc.info/viewtopic.php?p=58493
    • Marked as answer by jkloth1 Monday, February 01, 2010 9:43 PM
    Monday, February 01, 2010 8:34 PM
  • Thanks a lot guys!  I got it working!

    This might be a stupid question but how do you upload screenshots to this forum, anyway?
    Monday, February 01, 2010 9:15 PM
  • Use image tags. It needs to be in HTML. Click the HTML button and use:

    <img src="image url"></img>

    I am glad everything worked out!
    Tuesday, February 02, 2010 1:49 PM
  • How??? What did you do??
    Monday, February 08, 2010 9:12 PM
  • Well, I'm using UltraVNC 1.0.8.2 on the Win7 machine and RealVNC 4.1.3 on the XP machine
    And as Bubba pointed out you need to allow both the VIEWER and the SERVER through your firewall.  And try installing it in compatibility mode as Bubba also suggested.
    Monday, February 08, 2010 10:57 PM
  • Actually, the free edition of VNC doesnt support win7.
    Tuesday, June 05, 2012 11:03 AM
  • 2 things

    1. you have to buy and run VNC Personal (maybe Open now) and install it on each windows 7/8 computer you want to connect to

    2. set the password security to 'prefer off' on the VNC Personal you install on the win 7/8 server

    Tuesday, January 28, 2014 9:30 PM