Phenomenon:

reason:

Windows itself provides port access mechanism.

Windows provides TCP/IP link ports of 1024 ~ 5000, and it takes 4 minutes to recycle these ports. At this time, if we run a large number of requests in a short time, the ports will be full.

Solution:

win + r   Enter regedit to open the registry   Find the following path

Computer_ LOCAL_ MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters

Right click parameters to create a new DWORD   The name is maxuserport   The value is 65534 (maximum 65535, set 65534 to prevent all ports from being occupied)

Right click parameters to create a new DWORD   The name is   TCPTimedWaitDelay   Value is 30 (default unit is seconds)

Reference: HTTPS://support.microsoft.com/zh-cn/help/196271/when-you-try-to-connect-from-tcp-ports-greater-than-5000-you-recover-t

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