Remote authentication impossible on WebUI

Teltonika Networks
1

Hello,
I have a RUT X09 router in version RUTX_R_00.07.04.5_WEBUI.
I have configured several of them the same way, but I have one that does not want my remote authentication (no problem locally).

I can’t upload the troubleshoot file

3

Hello,

Could you clarify if all of these devices are using the mobile connection as their main WAN interface?
Additionally, what error is seen when trying to reach the WebUI remotely? Does the login page not load at all, or do you receive the message Device is unreachable when logging in?
It also depends how you’re reaching them.

If the mobile IP is being used, make sure that:

  • The interface is assigned a public IP;

  • You have not blocked yourself by entering the incorrect credentials 10 times in a row. This can be checked by connecting to the device from a different WAN address;

  • Mobile interface MTU could also be lowered, as too big MTU value is known to cause issues with some carriers. This can be done by navigating to Network → Interfaces → General, editing the mob1s1a1 (SIM1) or mob1s2a1 (SIM2) interface, and under the Advanced options field setting the Override MTU value to 1350;

If you’re using a VPN connection to reach the device, the same solutions apply - Try lowering the MTU value, make sure your IP address is not blocked, make sure the VPN connection is established and the correct routes are pushed.
Let me know if any of these options help!

Best regards,

4

Hello,
Yes I received this message. I’m using Mobile.
With ssh, I have no problem.
I put the MTU for mob1s1a1 to 1350, but always the same!!

5

In the log :

Fri Sep 22 11:04:12 2023 kern.notice Authentication was successful from HTTP 10.151.76.100
Fri Sep 22 11:04:12 2023 daemon.err uhttpd[21195]: vuci: accepted login for admin from 10.151.76.100
Fri Sep 22 11:05:00 2023 kern.info kernel: firewall configuration has been changed
Fri Sep 22 11:05:00 2023 kern.info kernel: firewall configuration has been changed
Fri Sep 22 11:05:00 2023 kern.info kernel: firewall configuration has been changed
Fri Sep 22 11:05:00 2023 kern.info kernel: dropbear configuration has been changed
Fri Sep 22 11:05:00 2023 kern.info kernel: uhttpd configuration has been changed
Fri Sep 22 11:05:14 2023 kern.notice Authentication was successful from HTTP 10.240.20.1
Fri Sep 22 11:05:14 2023 daemon.err uhttpd[21195]: vuci: accepted login for admin from 10.240.20.1

10.240.20.1 is the remote IP, 10.151.76.100 is local IP. If I restart uhttp service it’s OK for few minutes

6

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