put inside the usual
rpcallowip=192.168.1.*
rpcallowip=127.0.0.1
rpcuser= you choose
rpcpassword=you choose
rpcport=4439
server=1
try to point the rig to 192.168.1.your last ip number of your machine, private ip not public, but i think you need the public ip of your provider here...
Does this method work even the wallet couldn't sync?
The main problem is the wallet couldn't sync due No active nodes and there is no pool also.
of course it need synching, try to download the whole chain from internet or try to ask in the official thread, what is the coin you're main btw? chaincoin?