Close you wallet. Open windows console (cmd). Use command cd c:\ <your ecocoin-qt.exe location> -addnode=178.210.48.7.

You can look for active nodes from here http://173.212.234.93:3002/network

Or you can direct ecocoin-qt.exe to new ecocoin.conf file where you can bu all new nodes.

You can look for active commands in your wallet \help\debug window\command-line-options\show details

What about Bitquark http://www.bitquark.info/?