I am using several RUTX50 devices in our company, and I have recently encountered an issue where all devices occasionally lose their connection to the mobile network.
I have noticed that this issue can be reproduced when performing a 5G speed test or download a large file. After approximately 30 seconds, the connection to the mobile network is re-established.
Additionally, I observed that the speed test completes successfully when the 5G network achieves a download speed of approximately 50 Mbps. However, in areas with a very strong 5G network, the connection breaks down.
I tested the SIM card in my phone, and the speed test completed without any problems.
I have tested it also with the latest firmware 7.11
Do you have any ideas or suggestions to resolve this issue?
Furthermore, I discovered that if I disable the 5G N78 band, the modem remains connected to the mobile network. However, as soon as I re-enable the band, the connection drops again.
Of course, the network quality could be better, but as soon as I disable the 5G band N78, I can run a speed test without any interruptions.
When the band is activated, it does not work, and the connection is re-established.
Why does the RUTX50 struggle so much with the N78 band?
Maybe you can give more details about interruption? Do you see some messages in Webui that modem is unreachable or what? How you can explain the meaning of “interruption”?
As soon as I start the speed test and refresh the web interface, it only shows “Loading.” After about 30 seconds, the web interface becomes visible again, and under “Status/Network/Mobile/Data Connection State,” it says “Disconnected.” It then takes a while before it switches back to “Connected.”
Could you try not to refresh the page when speedtest is started? I’m curiuos if just “disconnected” appears or just whole information is being lost, also please try to go to Overview page before going to do speedtest and check if there are no messages about modem when speedtest is going.
Also, please hide some private info in pictures as those can be used for bad actions
Yes, you can create log file but I think Teltonika support should give you instructions how to transfer it securely
That’s interesting, it looks like connection tracker doesn’t get response about data connection state and connection restarts. Also, are you sure that your SIM is allowed to use 5G network? Also, can you try to turn off VoLTE and try one more time?
