When receiving error messages invalid account/authorization failed / unauthorized this relates to you either entering your password incorrectly or choosing the wrong server. 

Please be sure to select mt4.nashmarkets.com (NashMarkets-Live) as the server when logging in to a real account. 

For Demo Accounts, the selection should be NashMarkets-Demo (demo.nashmarkets.com). If the server selection is not the issue, please try resetting your MetaTrader password. 

This can be done from the My Accounts section by following the below steps; 

  1. Click on My Accounts
  2. Click on View on the account in question
  3. Click Actions 
  4. Click Copy the password and then click on Submit on the system generated password

    Please make sure to click on "Submit" as the process will not work without it.