RMS RMS connect - SIMATIC Unified Basic Panel not working

[Rolf]

Hi, I am trying remote access on a SIMATIC Unified Basic Panel. It connects, works until after authentification. After clicking “Anmelden/Login” nothing seems to happen. I start Browsers dev console: Theres an stopping further progress.

I wonder if anybody saw this before - and knows how to solve this ?

I already filed a support request at SIEMENS - the blame it on somebody else:-(

It would a very convenient way to remote control those SIEMENS panels!

[Rolf]

…also did this:

curl -I http://192.168.0.4
HTTP/1.1 301 Moved Permanently
Server: nginx/1.18.0
Date: Mon, 27 Oct 2025 14:26:43 GMT
Content-Type: text/html
Content-Length: 169
Connection: keep-alive
Location: https://192.168.0.4/

→ The HMI is enforcing https

curl -I https://192.168.0.4
curl: (60) schannel: SEC_E_UNTRUSTED_ROOT (0x80090325) - Die Zertifikatkette wurde von einer nicht vertrauenswürdigen Zertifizierungsstelle ausgestellt.
More details here: curl - SSL CA Certificates

→ seems somebody doesn’t like self-certified certificates

But maybe there is a workaround?

[Marija]

Hello,

Could you please let us know if the same issue occurs when you try to access your panel via the VPN Hub?
You can find the setup instructions here: RMS VPN Hubs - Teltonika Networks Wiki.

Best regards,

[Rolf]

Hi, via the VPN Hub its working fine.

[Rolf]

But I would prefer using RMS connect, it’s very convenient for this use case, and I could share the access link with anybody, and the recipient doesn’t require a VPN client installed, a browser would do…

[Marija]

Hello @Rolf,

Apologies for the delayed response.

Could you please confirm if you still need any assistance?

Best regards,

[Rolf]

Yes please - it’s still the same issue.

[Justinas]

Greetings,

I have relayed your issue to our research and development department, once I get their feedback, I will get back to you.

Best Regards,
Justinas