No issue with Cryptopia now, they had to re-sync wallet a while back.
The wallet takes a little time to sync in the first instance but the snapshot will speed it up!
Make sure you add the latest nodes to your wallet conf file to help sync
addnode=64.137.192.55:12788
addnode=79.124.7.89:12788
addnode=208.157.150.188:12788
addnode=94.5.174.111:12788
addnode=24.125.103.115:12788
addnode=81.67.10.177:12788
addnode=172.91.205.249:12788
addnode=118.211.142.166:12788
addnode=210.104.87.98:12788
addnode=73.98.215.227:12788
addnode=73.231.216.115:12788
Lots of activity going on for mint, the sooner people drop the pointless sell walls the quicker it will rise.
A new exchange will breath even more life into it.
Keep an eye on telegram
https://t.me/OfficialMintcoin - the pinned message is full wallet install instructions