If you see an error message “Invalid Account” at the bottom left corner of your MT4 or MT5 as below, then you might have typed wrong “Login Credentials” to login.

To resolve this problem, please go to “File”→”Login to Trade Account”.

And in the below screen, please type in the correct “Login Credentials” provided by your broker.

It is capital sensitive(such as “a” and “A”), and no space should be included.

In the column of “Server”, you need to choose from the drop-down list or type the IP address of the server your account can be connected.

If you don’t see the server name of yours in the list, then please follow the instructions specified here.

For more information, please contact FBS support team.

FBS Official Website