MT5 setup / quick reference
MT5 error 10027 or 10026?
Find the right next step.
10027 points to the client terminal. 10026 points to the trade server. Read the exact return code, then follow its route below.
For an EA, check the message in Toolbox → Experts or Journal. The code helps identify where to investigate.
10027Check the terminal.
TRADE_RETCODE_CLIENT_DISABLES_AT
Automated trading is disabled by the client terminal.
- For the EA you intend to run, check MT5’s platform Algo Trading permission.
- Check that EA’s own Allow Algo Trading setting.
The toolbar button and the corresponding setting under Tools → Options → Expert Advisors control the same global permission.
Algo Trading switches off after an account, profile or chart change? Check the protective settings →
10026Check with the broker.
TRADE_RETCODE_SERVER_DISABLES_AT
Automated trading is disabled by the trade server.
Ask the broker to investigate the restriction for the account and the attempted operation.
A local terminal toggle cannot remove a server-side restriction. The code alone does not establish the broker-specific cause.
Can I run an EA in MT5 for iPhone or iPad?
No. The MT5 iOS app cannot install or run Expert Advisors (EAs). Desktop EA installation and Algo Trading controls apply to the host running the EA.
TradeMaster Autobot needs its supported, configured Windows PC or Windows VPS setup, with MT5 running and online. You can monitor your broker account on your phone; the EA runs on the Windows host.
Read the iPhone/Android EA and host guide for what closing the phone app changes, what must stay online and why hosting compatibility matters.
Bring setup questions to the community, inspect dated bot-posted signal outcomes including wins and stop losses, and explore the service. New members get a 7-day signals + Autobot trial.
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Official sources: iPhone/iPad EA limitation · Desktop EA setup · iOS account monitoring.
Make the support conversation useful.
For setup help, name the error code and whether MT5 runs on your computer or a VPS. Describe what you tried in your own words. Keep account details and credentials private; a plain-language description is enough.
Save the quick reference ↓