The EA has always been broker dependent. It worked great on the old Pepperstone accounts, but when they introduced the new and 'better' edge servers the EA failed. Different price feeds, different internet connections, different operation systems (some people claim that Windows Server 2012 can handle more ticks per minute than Windows Server 2008), different network architecture, different VPS, other EAs on the same account and so on and so forth. Scalpers always come with a certain randomness.
Just try different brokers until you find one that works for you.
I have found the reason for the lack of trades on the night scalper strategies on my account. The reason are the high spreads avalaible on asian session that LMAX offers. Can you guys suggest a broker with acceptable spreads on asian session that fits FRPEA?
I guess the vendor is recommending IC Markets for a reason.
Since you are currently using LMAX I assume you want a broker in Europe. In that case I would suggest Darwinex. Not sure about their Asian session spreads, but in general their spreads are quite good and they are UK regulated.