I will try to help you. 
If u are on windows you need to add node addresses:
1)go to C:users/(your user)/Roaming/Madcoin
2)Open file  madcoin.conf with notepad and copy this addresses in the end of code, save and close.

 addnode=207.246.77.50:10882
 addnode=207.246.115.12:10882
 addnode=63.142.251.24:10882
 addnode=45.76.218.40:10882
 addnode=45.32.47.152:10882
 addnode=209.250.241.48:10882
 addnode=45.77.65.223:10882
 addnode=108.61.170.22:10882
 addnode=165.227.161.2:48844
 addnode=165.227.161.2:10883
 addnode=80.209.228.95:48744
 addnode=210.89.176.145:48745
 addnode=46.101.165.70:10882
 addnode=45.77.142.74:10882
 addnode=87.103.215.89:10882
 addnode=35.193.194.35:10882
 addnode=195.177.209.14:10882
 addnode=185.223.31.209:48744
 addnode=5.189.170.220:48744
 addnode=134.255.252.162:48744
 addnode=45.77.245.54:10882
 addnode=185.223.28.172:48744
 addnode=104.197.134.84:10882
 addnode=45.77.60.230:10882
 addnode=210.89.176.145:48746
 addnode=35.193.81.117:10882
 addnode=66.70.189.170:48744
 addnode=51.254.220.24:10882

3)Open your wallet and wait
 (at least this worked for me)
If this doesnt work than ask in discord channel.