Fixing Broker Connectivity Problems in MultiCharts

If MultiCharts is unable to connect to your broker, you may experience issues such as missing account information, inability to place trades, delayed market data, or connection error messages. This guide will walk you through the most common causes and solutions to restore your broker connection.

Common Symptoms

You may be experiencing one or more of the following:

MultiCharts displays "Disconnected" status.
Your trading account does not appear in MultiCharts.
Orders cannot be submitted.
Market data is not updating.
Connection timeout or authentication errors appear.

1. Verify Your Internet Connection

Before troubleshooting MultiCharts, make sure your internet connection is stable.

Open a web browser.
Visit several websites.
Confirm there are no connectivity interruptions.

Confirm Your Broker Credentials

Double-check that you're using the correct:

Username
Password
Account Number (if required)

Ensure the Broker's Platform is Running (If Required)

Some brokers require their trading platform to be open before MultiCharts can connect.

Examples include:

Interactive Brokers (Trader Workstation or IB Gateway)
CQG
Rithmic (depending on configuration)

Make sure the required platform is:

Logged in
Connected
Not showing any connection errors

Check MultiCharts QuoteManager

Open QuoteManager and verify:

Data source is configured correctly.
Connection status shows Connected.
No login errors are displayed.

Verify API Settings

Certain brokers require API access to be enabled.

For example:

Interactive Brokers:

Enable API Connections.
Allow socket connections.
Verify the correct port number (usually 7496 or 7497).

6. Restart Everything

A simple restart often resolves temporary issues.

Restart in this order:

Close MultiCharts.
Close your broker platform.
Reopen the broker platform.
Log in successfully.
Launch MultiCharts.

Check Firewall or Antivirus

Security software may block the connection.

Allow the following applications through Windows Firewall:

MultiCharts
QuoteManager
Broker platform (TWS, IB Gateway, etc.)

Temporarily disable antivirus only for testing if necessary.

Verify Server Status

Sometimes the issue is on your broker's side.

Check:

Scheduled maintenance
Server outages
Market holiday announcements

If the broker's servers are down, you'll need to wait until service is restored.

Review Error Messages

Common errors include:

Incorrect username or password.

Connection Lost

Internet interruption or broker server issue.

No Data

Market data subscription may be inactive.

API Connection Refused

API settings are disabled or the wrong port is configured.

10. Update MultiCharts

Running an outdated version can cause compatibility issues.

Install the latest version of MultiCharts and restart your computer afterward.

Contact Your Broker

If everything appears correct but the connection still fails, contact your broker and provide:

Screenshot of the error
MultiCharts version
Windows version
Broker platform version
Exact error message

This information helps support identify the issue faster.

Final Checklist

Before contacting support, confirm that:

Internet connection is working
Broker credentials are correct
Broker platform is logged in
API settings are enabled
QuoteManager is connected
Firewall isn't blocking the connection
MultiCharts is updated
Broker servers are online

Most MultiCharts connection problems are caused by incorrect login credentials, API configuration, firewall restrictions, or temporary broker server outages. Following the steps above should resolve the majority of connection issues and get you back to trading quickly.

Updated on: 08/07/2026

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