Xdebug remote breakpoint debugging always reports socket connection failure

Log opened at 2018-06-01 08:08:35
I: Connecting to configured address/port: 192.168.6.159:9001.
W: Creating socket for "192.168.6.159:9001", poll success, but error: Operation now in progress (29).
E: Could not connect to client. :-(
Log closed at 2018-06-01 08:08:35

as in the code above, I saw such an error in the remote debug log. It seems to mean that the xdebug on the server has been connected to my computer all the time, otherwise it is impossible to prompt me to be in progress.
however, I can"t stay connected all the time. Ask Daniel for advice.

Mar.16,2021
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