Update: UltraVNC 1.4.3.6 and UltraVNC SC 1.4.3.6: https://forum.uvnc.com/viewtopic.php?t=37885
Important: Please update to latest version before to create a reply, a topic or an issue: https://forum.uvnc.com/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://x.com/ultravnc1
- Reddit community: https://www.reddit.com/r/ultravnc
- OpenHub: https://openhub.net/p/ultravnc

works on lan; no workee on internet

Single Click discussions / bugs
Post Reply
foob
Posts: 3
Joined: 2006-08-19 17:23

works on lan; no workee on internet

Post by foob »

my router ip: 10.1.1.1
my machine ip: 10.1.1.12 (the machine giving support, running viewer)
other machine:
10.1.1.7 (the machine needing support)

helpdesk.txt relevant details:
--------------
[HOST]
Internet support
-connect 10.1.1.12:5500 -noregistry

[HOST]
Internet support encryption
-plugin -connect 10.1.1.12:5500 -noregistry

-------------


OK, so I finally got helpdesk.txt configured right after the maaaaaze of confusion that I normally associate with open source projects. Nothing new, I say to myself. Anyhow, I love it. It works- on the LAN.

However, my main objective was to get it working over the net.
Who on earth runs this over lan? Not me.

Anyway, I try to put my no-ip domain in there; here's a fictitious example I humorously prepared earlier:
random.noip.domain:5500

Obviously I put the real details there, but....
it never works!

Relevant ports have been forwarded fine. The No-IP software client is installed & running on my machine. Does the fact that both machines are behind the router mean I can't test it - but it's working - or does this mean I shold be able to test it this way but it's just not working?

Do I need to give the file to someone on the wider net for me to test whether the file works or not (ie. on the public side of the router?)

Appreciate any help, coz I'm pulling my hair out here.
Dwalf
40
40
Posts: 112
Joined: 2005-08-25 01:02

Re: works on lan; no workee on internet

Post by Dwalf »

foob wrote:my router ip: 10.1.1.1
my machine ip: 10.1.1.12 (the machine giving support, running viewer)
other machine:
10.1.1.7 (the machine needing support)

helpdesk.txt relevant details:
--------------
[HOST]
Internet support
-connect 10.1.1.12:5500 -noregistry

[HOST]
Internet support encryption
-plugin -connect 10.1.1.12:5500 -noregistry

-------------


OK, so I finally got helpdesk.txt configured right after the maaaaaze of confusion that I normally associate with open source projects. Nothing new, I say to myself. Anyhow, I love it. It works- on the LAN.

However, my main objective was to get it working over the net.
Who on earth runs this over lan? Not me.

Anyway, I try to put my no-ip domain in there; here's a fictitious example I humorously prepared earlier:
random.noip.domain:5500

Obviously I put the real details there, but....
it never works!

Relevant ports have been forwarded fine. The No-IP software client is installed & running on my machine. Does the fact that both machines are behind the router mean I can't test it - but it's working - or does this mean I shold be able to test it this way but it's just not working?

Do I need to give the file to someone on the wider net for me to test whether the file works or not (ie. on the public side of the router?)

Appreciate any help, coz I'm pulling my hair out here.
Open VNC Viewer in listen mode and then go to this site
http://www.canyouseeme.org/

and test port 5500

If no susccess check firewalls and check if your router is portforwading 5500 to you local lan IP (the computer running vncviewer -listen)

cheers
Dwalf
foob
Posts: 3
Joined: 2006-08-19 17:23

Re: works on lan; no workee on internet

Post by foob »

Thanks for the excellent site, Dwalf.

I checked my 5500 port, and it says:
-----------------
Success: I can see your service on xxxxxxx on port (5500)
Your ISP is not blocking port 5500

-----------------


However,
I do get a pop-up saying:
---------------
Connection failed - Error reading Protocol Version

Possible causes:

- You've forgotten to select a DSMPlugin and the Server uses a DSMPlugin
- Viewer and Server are not compatible (they use differeent RFB protocoles)
- Bad connection

---------------

Any ideas?
Last edited by foob on 2006-08-20 05:14, edited 2 times in total.
Dwalf
40
40
Posts: 112
Joined: 2005-08-25 01:02

Re: works on lan; no workee on internet

Post by Dwalf »

foob wrote:Thanks for the excellent site, Dwalf.

I checked my 5500 port, and it says:
-----------------
Success: I can see your service on xxxxxxx on port (5500)
Your ISP is not blocking port 5500

-----------------


However,
I do get a pop-up saying:
---------------
Connection failed - Error reading Protocol Version

Possible causes:

- You've forgotten to select a DSMPlugin and the Server uses a DSMPlugin
- Viewer and Server are not compatible (they use differeent RFB protocoles)
- Bad connection

---------------

Any ideas?
Try this

[topic=7324][/topic]

it autmamates most of the stuff you want to do.

Cheers
Dwalf
foob
Posts: 3
Joined: 2006-08-19 17:23

Re: works on lan; no workee on internet

Post by foob »

Thanks for your help Dwalf, but after trying it, I give up. Nothing works. I'll come back to this in 6 months and see if things have improved.
grahamh
Posts: 2
Joined: 2006-10-12 20:59

Re: works on lan; no workee on internet

Post by grahamh »

i had exactly the same problem until i found this thread:

[post=29778][/post]

Ignore the bit at the beginning, its the tip near the end that tells all you need to know.

Basically you cant test the setup using your own lan, it seems as if your router intercepts the outgoing and reroutes it internally which then does not work.

From my own experiment, the server part of the setup is sending packets correctly, but the viewer is never receiving them.

Find someone on the internet external to your lan to try the file. It worked first time for me and both server and viewer are behind NAT.
bevtech
800
800
Posts: 2168
Joined: 2005-08-03 14:07
Location: Pennsylvania, United States

Re: works on lan; no workee on internet

Post by bevtech »

Or you could just read the postings in FAQ subform

Ultr@VNC FAQ
Bevtech

Windows XP Home, Pro SP2, Windows 2003 SBS server SP2(EN), Windows Media Center Editon 2005,Windows Vista Home Prem.,Fedora Core 6,Win9X, PChelpware Rel 1.0,
UVNC V 1.0.8.2

User not developer..;)
Post Reply