I tried these settings with the setting for coinotron but I get this
15:14:16:804 1570 Need to check DAG file (epoch #46), starting...
15:14:16:945 914 got 101 bytes
15:14:16:945 914 buf: {"error": null, "id": 2, "result": true}
{ "id": 9876, "method": "client.get_version", "params": []}
15:14:16:945 914 parse packet: 36
15:14:16:945 914 ETH: Authorized
15:14:16:945 914 remove first packet 54
15:14:16:945 914 new buf size: 54
15:14:16:945 914 parse packet: 54
15:14:16:945 914 send: {"error": null, "jsonrpc": "id": 9876, "result": "eth 1.0"}
15:14:16:945 914 new buf size: 0
15:14:17:148 914 got 66 bytes
15:14:17:148 914 buf: {"id": , "result": null, "error": [51, "JSON parse error", null]}
15:14:17:148 914 parse packet: 57
15:14:17:148 914 Cannot parse JSON!
15:14:17:148 914 new buf size: 0
15:14:19:165 660 OC v5, Reset control for GPU 0, close miner right now if you want to use default control from Catalyst
15:14:22:170 660 OC v5, Reset control for GPU 0, close miner right now if you want to use default control from Catalyst
It's a minor bug, will be fixed in next update: miner sends incorrect version answer, then pool sends incorrect report about the error, therefore you see this warning. You still can mine, here is my command line that you can use as start point, very similar to sample from OP:
EthDcrMiner64.exe -epool coinotron.com:3344 -ewal Redhex.rig1 -esm 2 -epsw x -allpools 1