Until this problem is resolved, you should not trade on that particular PC. I can't tell what it is - so far you seem the be the only one with such a connection problem. FXCM connection, at leat to the UK server, is pretty good and won't go offline without a good reason. It could be some PC specific problem.

Run Zorro in diagnostics mode with Verbose at 14. Wait until it goes offline again at a workday, then stop the session and post the diag file. Maybe it gives us some more insight.