For Linux users who can't get their wallet to connect:
Create a file named ethereumdark.conf in your ethereumdark wallet folder (most likely ~/.ethereumdark) and add the following to the file:
addnode=37.97.242.80:21001
addnode=5.9.69.5:21001
addnode=178.49.192.210:21001
addnode=96.233.137.21:21001
addnode=81.217.87.244:21001
addnode=101.191.6.196:21001
addnode=89.212.142.123:21001
addnode=73.241.206.73:21001
addnode=81.143.239.183:21001
addnode=75.136.57.13:21001
Then save it and (re)start your wallet.