My modem keeps failing to access the internet whenever I restart it. I am using the device to connect to a vdsl2 connection. Whenever I restart the device or the device is temporarily shut down, it will not be able to connect to the internet again, and I'll have to reset the device to factory settings, to get it working again.

I have tried stuff like reentering my connection data, but nothing except a full reset seems to fix the issue.