Expert Advisor Hosting: Complete Guide to MT4 EA on VPS

Pre-Setup Checklist

1. EA file (.ex4 for MT4, .ex5 for MT5)

2. Broker MT4/MT5 installer downloaded

3. Active VPS subscription (Starter plan works fine)

4. Broker login credentials

5. EA documentation (timeframes, pairs, parameters)

Step-by-Step EA Installation

1. Remote into your VPS via RDP

2. Install MT4/MT5 from your broker (always official source)

3. Open Data Folder: File menu → Open Data Folder

4. Copy your EA file to MQL4/Experts (or MQL5/Experts for MT5)

5. Restart MT4/MT5 to detect the EA

6. Drag the EA onto your chart

7. Enable 'Allow Live Trading' in EA settings

8. Click the 'AutoTrading' button in MT4 toolbar

Verifying Your EA Is Running

Look for the smiley face icon on your chart. Smile = EA is active. Frown = something is wrong.

Check the Experts tab at the bottom of MT4 for log messages.

Most EAs print initialization messages when they start successfully.

Common EA Problems and Fixes

Problem: 'Trading is disabled' message. Fix: Click the AutoTrading button in the MT4 toolbar.

Problem: EA loads but no trades. Fix: Check the EA's allowed trading hours and ensure they match your VPS time zone.

Problem: EA opens too many trades. Fix: Adjust max trades parameter in EA settings.

Problem: EA crashes MT4. Fix: Update MT4 to latest build, increase VPS RAM if needed.

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