• Run as administrator then wait for about 10 seconds to 5 minutes
• run `netsh winsock reset` as administrator https://support.microsoft.com/en-us/help/299357/how-to-reset-tcp-ip-by-using-the-netshell-utility
• consider to change MAC Address
• run Mudfish with option lowercase `-s`
• connect with Mudfish DNS Client If Mudfish DNS Client doesn't work,
• gpedit.msc - Local Computer Policy - Computer Configuration - Administrative Template - Network - DNS Client - Turn off smart multi-homed name resolution - Enabled - OK
• Control Panel\Network and Internet\Network Connections - TAP-Win32 Adapter V9 - Internet Protocol Version 4(TCP/IPv4) Properties - General - Advanced... - IP Settings - Automatic metric - Interface metric - recommended 15
• China https://mudfish.net/forums/6/topics/44662 https://mudfish.net/forums/6/topics/37597

OK，thanks