A7670 repeated GPRS disconnections

[giuseppezicaffe]

Hi there,
I'm running SIM7600 configuration on my A7670 and everything is working quite fine.
From time to time I get GPRS disconnection and when it gets disconnected it happens 20 times in two minutes but Network is signal is always ok, in fact for each disconnection the modem reconnects back rapidly.

Now I'm wondering I'm doing something wrong in my code, in particular I'm wondering if calling modem.isGprsConnected() on top of my loop() is ok or not for the communication with the modem.

Would the modem or the UART communication be too stressed?
Could this be the reason of the repeated GPRS disconnections?