If your domain name has been whitelisted successfully, but you still receive a record prompt page occasionally, the possible cause is that some security software has modified the system transmission parameters to achieve certain software functions.
Solution 1: Find the following location in the registry
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\EnablePMTUDiscovery
If the transfer parameters have not been modified, the above key values do not exist.
If the transmission parameter has been modified, the key value exists and the possible value is 0. In this case, you need to change the key value to 1 for the modification to take effect after the system restarts.
Solution 2: Download the detection tool, check it, and modify it.
Download link
In the following figure, change Path MTU Discovery to Default or Yes, leave TCP Receive Windows blank, and leave other values as Default
Restart the system.
The original link: www.niaoyun.com/docs/16509….