VNC black screen

[JohnDoe]

Hello,

There is 1 post already regarding this issue but the following;

When we want to connect through remote access, and than connect using VNC, we only see a black screen appear and no actual screen. This is only happening since recently, since the beginning of this week. NLA has been checked and creating a new remote access VNC session didnt resolve it.

Kindly look into this matter since we are not the only ones experiencing this issue.

[Justinas]

Greetings,

Apologies for the delayed response.

Could you please clarify if you are still having issues with RMS Connect VNC or has the issue been resolved?

Best Regards,
Justinas

[acle]

Hello,

I would like to support this request.

We are experiencing the same issue here.
VNC access via “Remote Access” is no longer working.
Direct VNC Viewer connections work fine.
It used to work, but stopped functioning about two weeks ago.

@Teltonika: Have you made any changes to VNC access via Remote Access?

Please shed some light on this issue.

[Justinas]

Greetings,

@acle could you please clarify, does RMS Connect VNC not work for you on a PC or a mobile device?

Best Regards,
Justinas

[acle]

Hello,

On PC.

Thanks

[telsfauto]

RMS VNC Not working

Hi everyone, I found that setting the screen scale to 100% in the PC settings, as shown in the image below, makes the RMS VNC work correctly. I hope this helps and we’re waiting for Teltonika to fix the issue. [Scale modification]

[acle]

Hi everyone,

I believe I have identified a reproducible pattern related to this issue, as well as a temporary workaround.

The behavior seems to be linked to the combination of Windows display scaling and browser zoom level.

To avoid duplicating the same investigation across several threads, I have posted the full details, test results and workaround here:

RMS VNC Not working

Hello everyone, I am experiencing what appears to be the same issue with several customers using Teltonika RMS Remote Access VNC, from Windows PCs to different types of remote equipment, mainly industrial controllers/PLCs. After investigating the issue, I noticed that the behavior seems to depend on the combination of two local display settings: Windows display scaling: Settings → System → Display → Scale Browser zoom level, in my case Google Chrome The important point is that neither…

If you are experiencing the same black/white screen issue with RMS Remote Access VNC, please have a look at this post and, if possible, confirm whether you can reproduce the same behavior.

It would probably be useful to centralize further findings on that thread so Teltonika can investigate the issue more easily.

Thank you.