using system time is fault - it was in the past and didn't do the job
to sync interval every time is adding random time - for now only minutes, i have just added seconds as well, so don't worry about getting banned

sync may be messed up because of your network drivers and network load, please update network card drivers and be sure that noone blocks up/down stream by downloading torrents

Please install the newest IE version available for your operating system.
This problem can be aslo caused by your antivirus which scans and checks all web requests to tribal wars server.
Try to disable antivirus as well.
here is proof
http://www.youtube.com/watch?v=WQNRMRRss3o that it works perfecly, even when i sent attacks with a huge time range,
i sent many times coordinated attacks operation like this one on above video and had only once "bad timing" because i downloaded a lot of torrents and down stream was blocked - for the rest it works like a charm,
i do a lot of snipes as well - and all is good