1) Add nodes to your syscoin.conf file
In Windows, the syscoin.conf file is in C:\Users\[USERNAME]\AppData\Roaming\Syscoin\
On MAC, the syscoin.conf file is in /Users/[USERNAME]/Library/Application Support/Syscoin/
a) STOP Blockmarket fully
b) Navigate to the location of your syscoin.conf file respective to your Operating System.
c) Open https://chainz.cryptoid.info/sys/#!network in your browser and click on the first node list.
d) Copy the node list text.
e) Open your syscoin.conf file or create a syscoin.conf if there isn't one.
f) Paste all the addnode text into syscoin.conf and SAVE the file.
g) Restart the application