Devices Disconnected

Greetings,

I've been having a problem lately on my Traccar server.

When the server is restarted, the devices do not connect automatically.

I have to reconnect them manually, this didn't happen before, what should I check? what could be happening?

Sounds like the problem is on the device side.

Anton, we sent to 3 devices that are disconnected a message to go online, the device stays connected for two minutes, then disconnected again.

Maybe it doesn't get expected reply from the server.