I have a problem with a server, the devices go into an unknown state

I have a problem with a server, the devices go into unknown state, to ensure I reinstalled a new server and used postgres as a database, previously I had used mysql. I can't find the reason anymore. The traccar version is 5.12. Could someone give me their help or opinion.. thanks

Well you only see Device unknow in the log right ?

So devices that are unknown in you server do not have the same device ID ?

Because there is no data from known devices in your log.

Unknown status means that your device hasn't reported anything for 10 minutes (default configuration). So you need to figure out why devices are not sending any data. We have a troubleshooting guide for that.

Exactly these devices in unknown status are reporting without problem, when restarting the server they all come back online.

Have you followed the troubleshooting guide?

After restarting the server, the devices from being online go to unknown?

Do you use any API to send notifications to e.g. WhatsApp?

if I am using API to send notifications via WhatsApp.

Anton, yes I have followed them.

Are you going to share results?

When I installed this particular server, I did it with a static IP and already had about 50 computers that reported to another IP with another TracCar, I exchanged the IPs so as not to reconfigure the computers, when I killed the old server it started to have that problem, what I did was create a new database and load the devices and the problem was solved, I understand that the IP change was the cause. Now it is working without problems.

I am seeing that when I activate notifications, I start to have the problem that the devices go into an unknown state. I have the traccar.xml configured in the following way.

<!-- Activación de diferentes notificadores -->
<entry key='notificator.types'>web,sms,mail</entry>


<!--NOTIFICACIONES POR WHATSAPP -->
<entry key='sms.enable'>true</entry>
<entry key='notificator.sms.manager.class'>org.traccar.sms.HttpSmsClient</entry>
<entry key='sms.http.url'>http://xx.xx.xx.xx:3001/lead</entry>
<entry key='sms.http.template'>
    {
       "phone": "{phone}",
       "message": "{message}"
    }
</entry>

api whatsapp

Probable causes

1.- you are sending a notification to a user that has the phone field blank.
2.- you are sending a notification to a user that has not sent you the message to be authorized in your whatsapp api.

thanks.. i will check