My TRB500 device has stopped functioning properly and is unable to connect to the BTS. The error message displayed is: “Limited connection.” I have followed the troubleshooting steps provided in the documentation, but the issue persists.
Steps Already Taken:
Verified the network configuration.
Checked and confirmed the APN settings.
Restarted the device.
Performed a factory reset.
Tested with another SIM card from the same telecom provider (same result).
Tested with a SIM card from a different telecom provider (same result).
Thank you for reaching out and providing detailed information about the issue.
To troubleshoot and investigate this matter more effectively, I have sent you a form to complete. Please use 11821 as the ticket ID when filling it out. Once the form is submitted, we will contact you privately with the next steps for troubleshooting.
Unfortunately, we were unable to send you an email as your mail server is blocking our emails, and our sent message has bounced back.
To further investigate the issue you’re experiencing, could you please confirm the following checks:
Ensure that the IMEI of the device is not blocked by your ISP.
Verify that your data plan with the network operator is still active, and that no data limit has been reached or the plan has expired.
As a testing step, navigate to Network → WAN → mob1s1a1 settings, change the PDP type to IPv4 only, save the changes, and see if that makes any difference.
Additionally, could you confirm if this issue was present before, or if it is a recent occurrence?
Sorry about that. I filled out a new form with the same ticket ID, using a new Gmail address.
I have already checked and confirmed the problem by testing with two different ISPs. The SIM card provided by the ISP works fine on my phone and other devices. I was also already using IPv4 only.
The issue started occurring recently, just last week.