Add those 2 IP addresses to your hosts file.
210.249.144.166 we9stun.winning-eleven.net
217.112.88.118 pes6gate-ec.winning-eleven.net
hosts file is located in this folder
%systemroot%\system32\drivers\etc\
When saving the hosts file, remember, save it with NO Extention! Do NOT save it as .txt!
Example of a hosts file
# Copyright (c) 1993-2006 Microsoft Corp.
#
# This is a sample HOSTS file used by Microsoft TCP/IP for Windows.
#
# This file contains the mappings of IP addresses to host names. Each
# entry should be kept on an individual line. The IP address should
# be placed in the first column followed by the corresponding host name.
# The IP address and the host name should be separated by at least one
# space.
#
# Additionally, comments (such as these) may be inserted on individual
# lines or following the machine name denoted by a '#' symbol.
#
# For example:
#
# 102.54.94.97 rhino.acme.com # source server
# 38.25.63.10 x.acme.com # x client host
127.0.0.1 localhost
::1 localhost
210.249.144.166 we9stun.winning-eleven.net
217.112.88.118 pes6gate-ec.winning-eleven.net
