Error in poll: 95

Continuing the discussion from Dfu refused connection:
Hello, excuse me for bothering you. In the reference discussione the issue was caused by sim that cannot connect, I changed it but now it returns Error in poll:95. What it means?

We saw your update and thought the SIM was the resolution of the issue. Could you give us more context on the Error in poll:95? Often it’s helpful to see a screen capture of more of your terminal output around a particular error.

Could you give us any other background on your errors?