Hello,
The issue might have occurred due to updating with Keep settings. There is a huge gap of various developments, reworks, updates and new features in between.
I would suggest to reset your devices to factory defaults. If issues persist, attach a troubleshoot file to your question. Please, replicate the issue, then access router's WebUI, go to System -> Administration -> Troubleshoot section and download troubleshoot file from there. The logs in the file might provide more insight into the issue.
Attached files are private and visible only to Teltonika Moderators.
Best regards,
