Q2400A, rare probs with connect

#1

occasionally it is hard to get a data connection in spite of good CSQ values and if i get a connection it breaks down immediately or it’s not possible to send/receive data, but all other functions are still working. if this happend, the module keeps staying in this state until hardware reset. maybe there is a newer firmware for my old modules?

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#2

sometimes this happens due to improper power supply or some kind of grounding problem.

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