rpcallowip=192.168.2.138 must be 192.168.2.*
ex: my ip is: 192.168.1.10 , so it's rpcallowip=192.168.1.*
Try it.
I've updated the ANN thread, try this :
Solo Mining Details:create file EduCoin.conf in C:\Users\%USERNAME%\AppData\Roaming\EduCoin
rpcuser=YOURUSERNAME
rpcpassword=YOURPASSWORD
rpcallowip=127.0.0.1
rpcport=17388
port=17389
daemon=1
server=1
listen=1
Configure your bat using the following:
-o
http://127.0.0.1:17388 -u YOURUSERNAME -p YOURPASSWORD
Then with your wallet running, run your Miner.bat