It appears that the tester tries to connect to localhost on port 3000.
Maybe its a firewall setting.
You can try to disconnect the computer from the net and then disable the firewall and try again to see if it works.
If it does you will have to add a firewall rule to forward the port so that the tester can connect to your localhost.
I'm also having the same problem on Mac, were you able to resolve it? If so how?

You are missing trading opportunities:
- Free trading apps
- Over 8,000 signals for copying
- Economic news for exploring financial markets
Registration
Log in
You agree to website policy and terms of use
If you do not have an account, please register
Hello, I am trying to use MT5 on Mac, and it was built using wine (it was not built by me, it was downloaded from a broker webpage which already did that).
My issue is when i try to run a backtest, and the journal states: "agent process started on 127.0.0.1:3000", "connecting to 127.0.0.1:3000" and then "connection failed". Check attached photo for journal screen print.
What can i do so that the connection is succesful?
Thank you