If you see the “Authorization failed” error when trying to log in to MetaTrader 4 or 5, it means your login attempt was unsuccessful usually due to incorrect credentials or a wrong server selection.
Why This Happens and How to Fix It
The most common reason is entering the wrong trading account password. Remember, this is not the same as your client portal password. Make sure you're using the correct login details linked specifically to your MT4 or MT5 account.
Another potential cause is selecting the incorrect server during login. Each account is assigned a specific server (e.g., Bullwaves-Live or Bullwaves-Demo), and using the wrong one will prevent authorization.
If you're unsure about your password, you can reset it directly from your Client Portal. After resetting, return to the platform and try logging in again using the updated credentials and the correct server.