AppData\Roaming\JackpotCoin would be the correct directory for jackpotcoin.conf.  My conf file literally looks like this below and functions no problem (provided I use my VPN due to shitty isp)



logtimestamps=1

maxconnections=100

addnode=90.155.222.162
addnode=66.176.62.63
addnode=93.233.79.195
addnode=98.193.2.154
addnode=5.250.177.28
addnode=24.13.164.246
addnode=74.90.54.187
addnode=76.168.111.3
addnode=110.255.149.5
addnode=85.102.226.187
addnode=46.39.240.53
addnode=154.20.19.46
addnode=186.59.181.76
addnode=74.33.230.204
addnode=107.202.133.56
addnode=75.150.145.65


if you still can't connect, have you tried totally wiping out everything except your wallet.dat and doing a fresh install of the latest client?  I did have to do this once for a different coin.