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I want to connect my Galaxy S2 to my PC using AndroidVNC (for the Android) and TightVNC (for the PC), or any other combination of software to VNC. So far I have managed to port forward ports 5500, 5800, and 5900 on my machine and open my firewall to TightVNC (it did it by default on installation). But whenever I try to login to my PC from my phone, it always times out on establishing handshake. I double checked all the steps (including making sure my IP was correct and my ports are open with http://www.canyouseeme.org/). Any ideas what I could try next?

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Have you tested it with something other than your phone from the outside? – Paul Feb 3 '12 at 3:39
    
Also, do you have wifi so you can confirm that it works within your network? – Paul Feb 3 '12 at 3:44
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Paul, I have tried to get into my computer from my work computer and that didn't work, but I heard that offices can block such outgoing connections so I can't take that to mean anything. Also I tried to get in from both my machine and another machine on my home network and those got through just fine. I was quite amused by the cascading window effect :). PS, no wifi unfortunately :( – ExitFailure Feb 3 '12 at 6:33
    
Does anyone have any ideas as to what else I could try? – ExitFailure Feb 6 '12 at 17:45

What display number are you using for TightVNC? I was having the same problems and figured out that I needed to add the display number to the default port number. So, using display 1, I had to connect to Port 5901.

Once I did that androidVNC connected fine.

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