An error occurred while creating the WEB proxy specified in the "System.net/defaultproxy" configuration section.

Workaround:

Enter the Netsh winsock reset command under CMD

NETSH WINSOCK Reset the meaning and function of this command?

Simply speaking, the netsh winsock reset command means resetting the Winsock directory. If there is a problem with the Winsock protocol configuration on a machine that will cause problems such as network connectivity, you will need to reset the Winsock directory with the Netsh winsock reset command to restore the network.

Winsock is a Windows network programming interface that starts with a built-in command from Windows XP SP2 and uses Netsh to fix the interface.

Netsh is an interface that operates almost all network-related settings through the command line. such as setting Ip,dns, network card, wireless network and so on.
netsh winsock Reset:
First go to Netsh
And then into the Winsock part.
Perform the reset command on this part of Winsock.
The effect is to reset the Winsock. Some of the problems caused by the destruction of Winsock are miraculous. The fix to the Winsock issue is cumbersome before netsh occurs.

An error occurred while creating the WEB proxy specified in the "System.net/defaultproxy" configuration section.