listening mode stopped working after update to 1.7.1.0 x64

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nagysifa
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listening mode stopped working after update to 1.7.1.0 x64

Post by nagysifa »

Hi!

First of all thank You for developing this essential networking tool!

I have been using listening mode ( UltraVNC reverse connection ) for many months with version 1.6.4.0 on my server with command from a batch file :

START "" "C:\Program Files\UltraVNC\vncviewer.exe" -listen 55500

after updating to 1.7.1.0 the clients can no longer connect ...
( the firewall/router connections are not changed )

After reverting to 1.6.4.0 version everything works again ...

These window appear instead of the remote desktop :

Image

Image

Thanks for any help or suggestion!
Last edited by nagysifa on 2026-01-15 10:21, edited 1 time in total.
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Rudi De Vos
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Re: listening mode stopped working after update to 1.7.1.0 x64

Post by Rudi De Vos »

Thanks for the feednack.

1.7.1 is still alpha, only use for internal testing.
Was viewer and server replaced or only the viewer... this limit the bug chase
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nagysifa
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Re: listening mode stopped working after update to 1.7.1.0 x64

Post by nagysifa »

Thank You for the quick reply.
I installed both of them.
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Rudi De Vos
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Re: listening mode stopped working after update to 1.7.1.0 x64

Post by Rudi De Vos »

I think i found it ... one } at a wrong place in coded LOL

Will post an update for testing.
This also include
-unicode chat
-copy paste of a file, could be handy if you quick want to copy a small file.
UltraVNC links (join us on social networks):
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nagysifa
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Re: listening mode stopped working after update to 1.7.1.0 x64

Post by nagysifa »

Great! Eager to test it! And thanks for all the work You put into this!
nagysifa
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Re: listening mode stopped working after update to 1.7.1.0 x64

Post by nagysifa »

Thank You for the quick reply!

I installed the file (UltraVNC_1710_x64_Setup.exe) to my server
Started the listening mode ( as always ) : START "" "C:\Program Files\UltraVNC\vncviewer.exe" -listen 55500

unfortunately it still do not work :

Image

I tried it with 1.6.4.0 and 1.7.1.0 on the client side ...
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Rudi De Vos
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Re: listening mode stopped working after update to 1.7.1.0 x64

Post by Rudi De Vos »

Can't repeat it
START "" "C:\Users\rudi\Desktop\git_ultravnc\vncviewer\Debug\vncviewer.exe" -listen 55500
this show the viewer on the systray
Image
and i can proper connect.

possible it's related to save config settings

When do you get the dialog,
on start or when the server connect ?

see
Image
rename the options or other config files to test
UltraVNC links (join us on social networks):
- Website: https://uvnc.com/
- Forum: https://forum.uvnc.com/
- GitHub sourcecode: https://github.com/ultravnc/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
- uvnc2me: https://uvnc2me.com/
nagysifa
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Re: listening mode stopped working after update to 1.7.1.0 x64

Post by nagysifa »

I get the error window after I initiate the connection on the remote client ...

I will try Your suggestion and get back to You.
basso
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Re: listening mode stopped working after update to 1.7.1.0 x64

Post by basso »

I have the same problem.
It occurs when the connection starts.
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