TK-905 Server Error

First of all, thank you for all the support and help with all the issues.
I have a problem trying to connect a TK-905 (bought in Amazon) to my own server.

Things that are working fine:

• If I connect the device to the app: TKSTAR, everything is working fine.
• SMS, calls, monitor mode... ALL OK.
• When I change the server to traccar demo1: 46.101.24.212 and port: 5093. ALL GOOD
• When I connect several mobile phones (android apk) to my own server, all the devices are working fine in ports: 8080 and 5093.

Last thing that is not working:

• If I connect the TK-905 to my server in ports: 5093, 8080, 7700, .... It is not working. Always offline status.

¿What can I check to solve this problem?
In my server log I don't see any ID a part of the phones.

Server configuration ports:

0.0.0.0:5093  8082/tcp :::5093  8082/tcp
0.0.0.0:8080  8082/tcp :::8080  8082/tcp
0.0.0.0:5093  8082/udp :::5093  8082/udp

Thanks in advance for the tips and help.

Have you checked the SIM card in another device or phone?

Yes, SIM card is ok in 2 phones.
APN is working fine and GPRS is working for demo server and default server.

I got this year's tk905s working on port 2015 huabao protocol. Last year they were watch protocol. Who knows!

Btw, the huabao tk905s appear to use about 4 times as much data as the watch protocol version with the same settings.

It is working fine now. I solve it reinstalling in the server from 0.
Thanks for the support.