SimCom SIM7600E GSM Modem Internet Connection Limitation

I want to implement TCP/IP connection using sim7600E module but after connection establish after some time I am getting error like unexpectedly network close or IPCLOSE 0,1 like wise....please let if any already face the same issue and to solve this problem.
I,m also working on same module and facing the same issue sometimes but i will suggest you to update the sim module firmware and sometimes because of an network issue it happes.