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ارور 678 مربوط به موارد زیر میشه!
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The connection could not be completed because the remote computer did not answer the connection request. Try the following:
If you are trying to establish a dial-up connection, make sure that the phone number you are dialing is correct. Try dialing this phone number from your telephone. For more information, see To configure a connection.
If you are trying to establish a connection by using a modem, make sure the modem is functioning properly. For more information, see Troubleshooting modems.
If you are trying to establish a connection to a virtual private network (VPN), make sure that the host name or the IP address of your destination server is correct, and try again to establish the connection. To view the properties of a connection, right-click the connection, click Properties, and review the information on the General tab. For more information, contact the system administrator for the VPN to which you are trying to connect.
If you are trying to establish a connection to a VPN, network congestion or a network device (such as a firewall) might be blocking your attempt to make a connection. For more information, contact the system administrator for the VPN to which you are trying to connect.
If you are trying to establish a broadband connection, make sure the service name is correct and try again to establish the connection. To view the properties of a connection, right-click the connection, click Properties, and review the information on the General tab. For more information, contact your broadband service provider.
If you are trying to establish a broadband connection, make sure that the necessary hardware (such as a cable modem) is installed and functioning properly. For more information, contact your broadband service provider.
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