Can help me solve winsocket ＋ timer implementation of timing link test package (with source code and test server)

wayne206

The result of my operation finally appeared N more
Resp received link detection.
Resp received link detection.
Resp received link detection.
Resp received link detection.
Resp received link detection.
Resp received link detection.
Resp received link detection.
Resp received link detection.
Resp received link detection.
..................


And no link detection packet is sent, which is the cause.