Brokers usually distribute their version of the MT4 or MT5 with their servers already added to the platform.
However, to connect to an account from a broker server that hasn’t been added, one must first add it to the list.
How to add broker servers on MT4:
1. Open MT4
2. Type your broker’s server name and hit Enter
3. Select the broker’s server (there may be multiple ones) and click Next.
4. Click on “Existing Trade Account”.
5. Insert Login and password of your account and click Finish.
How to add broker servers on MT5:
1. Open MT5
2. Type your broker’s server name and click Find your company
3. Select the broker’s server (there may be multiple ones) and click Next.
4. Click on “Connect with an existing trade account”.
5. Insert Login and password of your account, select the appropriate server and click Finish.
Check this video below: