**addnode=72.11.149.185 DELETE THIS LINE ITS GONE
bantime=604800
addnode=207.12.89.2
addnode=72.14.178.111
addnode=208.115.109.157
addnode=88.161.131.83
maxconnections=4
Get rid of of all the other lines. Its not needed. Its not possible for it to go out of sync if those nodes and pools are legit (1 is mine, the others are pools)
If it does, backup wallet.dat, and gldcoin.conf, and delete all files withing %appdata%/roaming/gldcoin (this is the location you are using right?)
Now, what you need is more public trusted nodes, where people agree to keep their daemon running 24/7/365, and can forward/open port 8121 to the daemon, and have a static IP.
Ideally until the network grows you need a good 12 nodes, and you can then change maxconnections to 12.