Create a conf file in notepad with the below and add to mintcoin folder under appdata/roaming

addnode=144.76.64.123
addnode=81.95.191.233
addnode=211.28.143.54
addnode=89.71.42.172
addnode=79.124.7.72:12788
addnode=144.76.237.39:12788
addnode=82.211.60.130:12788
addnode=108.167.46.93:12788
addnode=158.69.27.82:12788
addnode=81.146.57.173:12788
addnode=184.7.192.21:12788
addnode=92.24.190.15:12788
addnode=72.226.24.176:12788
addnode=89.18.27.179:12788


The config file name is case sensitive. Use mintcoin.conf

Hope that helps