# Error "Connection lost" when launching the terminal

<figure><img src="/files/tGAOAu3dhvqw5LyOH4QA" alt="" width="563"><figcaption></figcaption></figure>

If you encounter the "Connection Lost" error, try the following steps:

1. Log in using your license credentials.  Use the login and password associated with your specific license, available in your[ Personal Account](https://www.tiger.com/terminal/personal-licenses):

<figure><img src="/files/Hs9ZDRHn7ECSFE0f8EGp" alt=""><figcaption><p>Copy buttons are located next to the login and password fields for convenience:</p></figcaption></figure>

2. Manually select a connection server: for a crypto license, choose one of the Crypto servers. For Full, Trial, or Player licenses, select one of the Main servers:

<figure><img src="/files/uszHO7FfM8iO5Oot7Cbe" alt="" width="563"><figcaption></figcaption></figure>

{% hint style="info" %}
Servers with the same name offer identical functionality. If you experience issues with one server, try an alternative.
{% endhint %}

3. Temporarily disable software that may block or filter outgoing traffic. This includes firewalls or antivirus programs.
4. Adjust DNS settings according to [our instructions](/english/frequently-asked-questions/fixing-network-issues-how-to-adjust-dns-settings.md).
5. Connect via a different network: for example, try using your mobile phone as a hotspot.<br>

### How to Update DNS in the Configuration File

If the issue persists, please try replacing the DNS domains with the server IP addresses in the configuration file as per the instructions below:

1. In Windows Explorer, navigate to: **C:\Program Files (x86)\TigerTrade**

<figure><img src="/files/AWP8vybiP9oxFI0gokpU" alt=""><figcaption></figcaption></figure>

2. Find the **TigerTrade.exe.config** file and **move it to the desktop**, confirming the action with administrator permissions.

<figure><img src="/files/eCRZkayEO3rmRThOiuFX" alt=""><figcaption></figcaption></figure>

3. Right-click the file and select Open with - Notepad

<figure><img src="/files/pS8X7JoDsCnFq903BQdT" alt=""><figcaption></figcaption></figure>

4. In Notepad, replace the text between the `<servers></servers>` tags with the following:

```
<add key="Server1" dnsUri="37.228.114.50" ipUri="37.228.114.50"/>
<add key="Server2" dnsUri="142.132.202.158" ipUri="142.132.202.158"/>
<add key="Server3" dnsUri="46.148.231.243" ipUri="185.189.195.39"/>
<add key="Server4" dnsUri="142.132.202.159" ipUri="142.132.202.159"/>
```

<figure><img src="/files/Hb4sqvlqsXvBs3Qf2ivS" alt=""><figcaption></figcaption></figure>

5. Save the changes and close the Notepad

<figure><img src="/files/Vj0krRRuBVVKZbszpZyr" alt=""><figcaption></figcaption></figure>

6. Move the modified file back from the desktop to **C:\Program Files (x86)\TigerTrade**, confirming the action with administrator permissions.

<figure><img src="/files/lQ0L2ZXsn6ZTQcbPGeIm" alt=""><figcaption></figcaption></figure>

Should you need any assistance, don't hesitate to contact our support team at **<support@tiger.com>.**


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