TRB501 – Intermittent loss of Internet due to modem crashes

Hi everyone,

To give you guys a quick update - we’re looking into the potential cause of the issue that our developers have noticed. They are actively looking into it and will implement a fix as soon as possible as the issue is pinpointed. Once we have more details, we’ll e-mail any of you that we’re in contact with and will also share the details here, in this topic.

@tacomannen @an_kal @unrealdtc @deganl

Thank you for your understanding and patience,
M.

Hello,

Thank you for following up on this. I didn’t get back to you because it was an isolation incident on my unit, and since I rebooted before recovering the troubleshooting logs, there was not much useful information to provide. I was hoping the unit would crash again, but this has not happened…

Stephen

1 Like

I’m not sure if this is the same problem I am having, the issue for me is that the ethernet port is going up and down, maybe that’s a side-effect? I’m still debugging that part of it to be honest, could be the router I have after the TRB501.

Regardless I have not been able to connect to my operators (3 Sweden) 5G network with the TRB501, and that definitely sounds like a modem firmware thing.

What do I need to do to get access to the modem firmware update?

Hi, koil,

I’ve sent you a form to fill out - fill it out with your contact details, and for the ticket ID, please use 16039-4

Regards,
M.

1 Like

Hello,

I have The same problem. I have install the last firmware TRB501_R_00.07.20.3 but every three or four hours the device need reboot. Is it possible to help me?

Best regards

Dinos

Hi, dinos,

I’ve sent you a form to fill out - fill it out with your contact details, and for the ticket ID, please use 16039-5

Regards,
M.

Hello again !
Had a few crashes last night which required a reboot to restore 4G/5G connectivity. Just like koil, I noticed the Ethernet interface flapping. This time, I was able to capture a troubleshooting file before rebooting the gateway.

I’m running TRB501_R_00.07.20.3.

Hello,

I hope you’re doing well,

I have sent you a form to fill out. Once you do please make sure that you use 16039-6 as a ticket ID and let me know once the form is filled out.

I look forward to your reply,

Best regards,
V.

Hi There,

I have brand new TRB501 on 7.22 and previously 7.21.3. it has a significant issue relating to the modem, as i have experienced a similar issue on the TRB500. Can i get a link to the modemfota.teltonika-networks.com repository for this specific modem firmware fix please as this device is basically DOA. I had 4 TRB500, all had the same issue caused by the Quectel RG501Q. Also, both the 500 and 501 are using an OCPU release which is pre-release.