I'm trying to use SC from a laptop with a mobile data card. The problem is the datacard has to use a proxy with all incoming ports blocked, making it impossible for customers to connect. The only way round this I can see is that the laptop also has to establish an outgoing connection, but this is impossible as I don't know where to establish the connection to until I receive the incoming connection!
Has anyone tried a similar setup or have any suggestions of a way round this?
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Development: UltraVNC development is always here... Any help is welcome
Feedback is welcome
Join us on social networks and share our announcements:
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A new stable version, UltraVNC 1.6.4.0 and UltraVNC SC 1.6.4.0 have been released: https://forum.uvnc.com/viewtopic.php?t=38095
Feedback is always welcome
2025-12-05: Celebrating the 23th anniversary of the UltraVNC (26th anniversary since the laying of the foundation stone): https://forum.uvnc.com/viewtopic.php?t=38130
2025-12-03: Could you please complete our poll/survey? Renaming UltraVNC files and service to be more clear: https://forum.uvnc.com/viewtopic.php?t=38128
There was a problem to vote, it is solved now! Thanks in advance!
2025-12-02: We need help: English Wikipedia UltraVNC page has been requested to deletion: https://forum.uvnc.com/viewtopic.php?t=38127
Any help is welcome to improve the UltraVNC page and/or to comment on the Wikipedia Talk page
2025-05-06: Forum password change request: https://forum.uvnc.com/viewtopic.php?t=38078
2023-09-21: Important: Please update to latest version before to create a reply, a topic or an issue: https://forum.uvnc.com/viewtopic.php?t=37864
Development: UltraVNC development is always here... Any help is welcome
Feedback is welcome
Join us on social networks and share our announcements:
- Website: https://uvnc.com/
- GitHub: https://github.com/ultravnc
- Mastodon: https://mastodon.social/@ultravnc
- Bluesky/AT Protocol: https://bsky.app/profile/ultravnc.bsky.social
- 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
SC and mobile data card
Re: SC and mobile data card
yes, make you and partner an outgoing connection to public repeater uvnc.com
try this easy example
secure remote assistance without opening any port at both side (you and partner)
SingleClick III (actual beta test)
prerequired:
both (you and partner) need use same exact number
and do all step until 5 min otherwise, both need to restart process.
stpe for you, supporter
Load and start for see/support partner computer.
http://sc.uvnc.com/scIII/vncviewer_ssl.exe
and complete field exactly as example below:
(except ID number 3112190 but use your own prefered number)

step for partner
Run
SCIII_test5.exe

Partner need only complete field as above:
(common number from partner and supporter)
(Enter your ID
3112190 <-- remember your own easy number and replace the example)
Without any punctuation
digit number only allowed between 1 to 99999999
try this easy example
secure remote assistance without opening any port at both side (you and partner)
SingleClick III (actual beta test)
prerequired:
both (you and partner) need use same exact number
and do all step until 5 min otherwise, both need to restart process.
stpe for you, supporter
Load and start for see/support partner computer.
http://sc.uvnc.com/scIII/vncviewer_ssl.exe
and complete field exactly as example below:
(except ID number 3112190 but use your own prefered number)

step for partner
Run
SCIII_test5.exe

Partner need only complete field as above:
(common number from partner and supporter)
(Enter your ID
3112190 <-- remember your own easy number and replace the example)
Without any punctuation
digit number only allowed between 1 to 99999999
UltraVNC 1.0.9.6.1 (built 20110518)
Windows OS: XP Home + Vista Business + 7 Home
Only experienced user, [u]not[/u] developer
Windows OS: XP Home + Vista Business + 7 Home
Only experienced user, [u]not[/u] developer
