Consider upgrading to LORIX OS
Most of the known issues of the legacy software have been addressed in LORIX OS:
- there is now a process monitoring to ensure the forwarder is always running
- the network aspects are more simple and finely manageable
- we added remote update support which makes really easy and secure the updates including security fixes but also new features
For all these reasons, the most adequate solution to the issue is to switch to LORIX OS, you can find more information on the dedicated page.
However, if you prefer to keep the legacy firmware or simply can't switch, there is probably also a solution to the issue in this troubleshooting section.