I don't know.
I can't see "target-miss" rejects from another user's, almost all of that generated by your worker. So I need some time.
I'll continue working on it few hours later.
OK.
Some further info for you. I'ed modified BTCMiner, so that only 1 FPGA is running. It starts immediately mining on your pool with the diff2 worker. Miner submitted 2 shares, one valid and one rejected (target-miss). "Request: [...]" is the direct input for the HTTPConnection and "Response: [...]" the output. Nothing between.
(Re)Scanning bus ...
0012220025: New device: bitfile=ztex_ufm1_15y1 f_default=200.00MHz f_max=248.00MHz HpC=1.0H
0012220025: MAC address: 0004a36e054a
0012220025: FPGA 1: configuration time: 310 ms
0012220025-1: New FPGA
0012220025-1: Set frequency to 200.00MHz
Starting mining thread for bus 001-0
0012220025-1: added
1 new devices found.
Summary:
Bus 001-0 : 1 miners
Total : 1 miners
Disconnect all devices or enter `q' for exit. Enter `h' for help.
0012220025-1: Request: {"jsonrpc":"1.0","id":0,"method":"getwork","params":[]}
0012220025-1: Using LongPolling URL http://pool.itzod.ru:8080/LP
0012220025-1: Response: {"id":0,"error":null,"result":{"data":"0000000250ed4ae602cb42d6a41d444b3bb3aec5145f579ceabe79370000039400000000649d9a503bed2fd70405d1d43e8733c2bede47b1d50cf691e830df9fcd697254509115201a0513c500000000000000800000000000000000000000000000000000000000000000000000000000000000000000000000000080020000","midstate":"890825f44347e096f6992ae8783eab54e2c05cd568f91101384a80c50e8ee194","target":"0000000000000000000000000000000000000000000000000000008000000000","hash1":"00000000000000000000000000000000000000000000000000000000000000000000008000000000000000000000000000000000000000000000000000010000"}}
0012220025-1: getWork new target: 0000000000000000000000000000000000000000000000000000008000000000
0012220025-1: getWork new difficulty: 2.0
Request: {"jsonrpc":"1.0","id":1,"method":"getwork","params":[]}
0012220025-1: Request: {"jsonrpc":"1.0","id":2,"method":"getwork","params":[]}
0012220025-1: Response: {"id":2,"error":null,"result":{"data":"0000000250ed4ae602cb42d6a41d444b3bb3aec5145f579ceabe793700000394000000005e6603a1e33844d57066202c0e2912ed0d453c47b979162906b532756be3aa2f5091152a1a0513c500000000000000800000000000000000000000000000000000000000000000000000000000000000000000000000000080020000","midstate":"b8a2816a53829eb8c418bcf2a36e576e73fe022169b954c073bf13abb389ca50","target":"0000000000000000000000000000000000000000000000000000008000000000","hash1":"00000000000000000000000000000000000000000000000000000000000000000000008000000000000000000000000000000000000000000000000000010000"}}
0012220025-1: Request: {"jsonrpc":"1.0","id":3,"method":"getwork","params":[]}
0012220025-1: Response: {"id":3,"error":null,"result":{"data":"0000000250ed4ae602cb42d6a41d444b3bb3aec5145f579ceabe79370000039400000000fc83ae92a6df8ef4fd5ac815f09c7a1b02805e018475281efb5dcbde1e9358dd509115341a0513c500000000000000800000000000000000000000000000000000000000000000000000000000000000000000000000000080020000","midstate":"5c2e57d9d10ebcb1ddae79e7c39e1ccb48178047921666cb963f4192b8d3d34a","target":"0000000000000000000000000000000000000000000000000000008000000000","hash1":"00000000000000000000000000000000000000000000000000000000000000000000008000000000000000000000000000000000000000000000000000010000"}}
0012220025-1: Request: {"jsonrpc":"1.0","id":4,"method":"getwork","params":[]}
0012220025-1: Response: {"id":4,"error":null,"result":{"data":"0000000250ed4ae602cb42d6a41d444b3bb3aec5145f579ceabe793700000394000000005c5fbdcb2e76f9a7b9910469ad0a7ccfad4928c00ce64c7b8243b84264839e265091153e1a0513c500000000000000800000000000000000000000000000000000000000000000000000000000000000000000000000000080020000","midstate":"d5e5ba517e4fe4b0e4eb5b52a7272d503dfb5ac1ff74acdd044c5ffe2bceb30b","target":"0000000000000000000000000000000000000000000000000000008000000000","hash1":"00000000000000000000000000000000000000000000000000000000000000000000008000000000000000000000000000000000000000000000000000010000"}}
0012220025-1: Request: {"jsonrpc":"1.0","id":5,"method":"getwork","params":[]}
0012220025-1: Response: {"id":5,"error":null,"result":{"data":"0000000250ed4ae602cb42d6a41d444b3bb3aec5145f579ceabe79370000039400000000def16158382901b659653762071e7893e32c0dbf491ddf733c98e0ac8295e9d7509115481a0513c500000000000000800000000000000000000000000000000000000000000000000000000000000000000000000000000080020000","midstate":"228106468730c2349971920f9efefe72530fc7f948af2bd23fc699ee2b13ea0d","target":"0000000000000000000000000000000000000000000000000000008000000000","hash1":"00000000000000000000000000000000000000000000000000000000000000000000008000000000000000000000000000000000000000000000000000010000"}}
0012220025-1: n=3ec6f110 d=0000000250ed4ae602cb42d6a41d444b3bb3aec5145f579ceabe79370000039400000000def16158382901b659653762071e7893e32c0dbf491ddf733c98e0ac8295e9d7509115481a0513c510f1c63e000000800000000000000000000000000000000000000000000000000000000000000000000000000000000080020000
0012220025-1: n=3ec6f110 t=0000000000000000000000000000000000000000000000000000008000000000
0012220025-1: n=3ec6f110 h=3a1f0d1917d58f59e308fb670d2c5d51cb2b77437f716308d90eff2700000000 -> VALID
0012220025-1: Submitting new nonce 3ec6f110
0012220025-1: Request: {"jsonrpc":"1.0","id":6,"method":"getwork","params":["0000000250ed4ae602cb42d6a41d444b3bb3aec5145f579ceabe79370000039400000000def16158382901b659653762071e7893e32c0dbf491ddf733c98e0ac8295e9d7509115481a0513c510f1c63e000000800000000000000000000000000000000000000000000000000000000000000000000000000000000080020000"]}
0012220025-1: Response: {"id":6,"error":null,"result":false}
0012220025-1: submitWork returned: {"id":6,"error":null,"result":false}
0012220025-1: Warning: Rejected block: target-miss
0012220025-1: n=6b3d4a0a d=0000000250ed4ae602cb42d6a41d444b3bb3aec5145f579ceabe79370000039400000000def16158382901b659653762071e7893e32c0dbf491ddf733c98e0ac8295e9d7509115481a0513c50a4a3d6b000000800000000000000000000000000000000000000000000000000000000000000000000000000000000080020000
0012220025-1: n=6b3d4a0a t=0000000000000000000000000000000000000000000000000000008000000000
0012220025-1: n=6b3d4a0a h=763169ca95c589f8a889057aa9dba9885b2bf54d1c7774534c843d1a00000000 -> VALID
0012220025-1: Submitting new nonce 6b3d4a0a
0012220025-1: Request: {"jsonrpc":"1.0","id":7,"method":"getwork","params":["0000000250ed4ae602cb42d6a41d444b3bb3aec5145f579ceabe79370000039400000000def16158382901b659653762071e7893e32c0dbf491ddf733c98e0ac8295e9d7509115481a0513c50a4a3d6b000000800000000000000000000000000000000000000000000000000000000000000000000000000000000080020000"]}
0012220025-1: Response: {"id":7,"error":null,"result":true}
0012220025-1: submitWork returned: {"id":7,"error":null,"result":true}
0012220025-1: Request: {"jsonrpc":"1.0","id":8,"method":"getwork","params":[]}
0012220025-1: Response: {"id":8,"error":null,"result":{"data":"0000000250ed4ae602cb42d6a41d444b3bb3aec5145f579ceabe79370000039400000000e017ce0d7c7ef1cca0f8559ab5d9ad3ddc657cba950ef57b788c28ac155c4c37509115571a0513c500000000000000800000000000000000000000000000000000000000000000000000000000000000000000000000000080020000","midstate":"5c53e89e8974bf188107aa6ebf019b2753357cc22aa611375c6b864b07bade04","target":"0000000000000000000000000000000000000000000000000000008000000000","hash1":"00000000000000000000000000000000000000000000000000000000000000000000008000000000000000000000000000000000000000000000000000010000"}}
0012220025-1: getWork returned: {"id":8,"error":null,"result":{"data":"0000000250ed4ae602cb42d6a41d444b3bb3aec5145f579ceabe79370000039400000000e017ce0d7c7ef1cca0f8559ab5d9ad3ddc657cba950ef57b788c28ac155c4c37509115571a0513c500000000000000800000000000000000000000000000000000000000000000000000000000000000000000000000000080020000","midstate":"5c53e89e8974bf188107aa6ebf019b2753357cc22aa611375c6b864b07bade04","target":"0000000000000000000000000000000000000000000000000000008000000000","hash1":"00000000000000000000000000000000000000000000000000000000000000000000008000000000000000000000000000000000000000000000000000010000"}}
0012220025-1: f=200.00MHz, errorRate=0.00%, maxErrorRate=0.00%, hashRate=200.0MH/s, submitted 2 new nonces, luckFactor=1.44
Total hash rate: 200.0 MH/s
Total submitted hash rate: 286.2 MH/s