Your phone cannot login. The prompt is firewall.

Reason: Firewall may exist in your network or you are using network devices or software with firewall function. The firewall chops the communication.

Please first inquire your agent to get server IP, then contact your ISP or network administrator to cancel the following restrictions: the restriction that data sent from PC IP to UDP 1710 and UDP1719 ports of server IP; the restriction that data sent from UDP1710 and UDP1719 ports of server IP to the PC IP.
Please report the above to the network administrator and require him to open the correspondent ports and firewall.