How To Resolve: Connection Closed By Remote Host

Have you ever encountered the frustrating error message “Connection Closed By Remote Host” while trying to establish a connection with a remote server? If so, you are not alone.

This error occurs when the remote host terminates the connection unexpectedly, leaving you disconnected and unable to complete your intended task. In this article, we will explore the possible causes of this issue and provide you with practical solutions to resolve it.

Understanding the Error: Connection Closed By Remote Host

When you attempt to connect to a remote server or host, your system establishes a connection with the remote device. However, in some instances, the remote host initiates the termination of this connection abruptly, resulting in the “Connection Closed By Remote Host” error.

Causes of Connection Closure

In the realm of networking, the causes of connection closure can be attributed to a variety of factors. One primary culprit is a sudden loss of network connectivity, which can occur due to physical issues such as cable damage, power outages, or hardware failure.

Here are a few causes of server connection closure and how to deal with it:

  1. Network Issues: A common cause of this error is network instability. It could be due to intermittent connectivity problems, network congestion, or even temporary outages. Unstable network conditions can lead to the termination of connections by the remote host.
  2. Firewall Settings: Firewalls act as a security barrier between your system and the remote host. In certain cases, strict firewall settings may interpret your connection attempts as suspicious or unauthorized, leading to connection termination.
  3. Software Conflicts: Incompatibilities between different software components can also trigger the “Connection Closed By Remote Host” error. This may occur if there is a mismatch in encryption algorithms, communication protocols, or if the remote host does not support the software you are using.

By promptly addressing these issues, businesses and individuals can ensure reliable and uninterrupted connectivity, fostering productivity and effective communication in the ever-evolving digital landscape.

Resolving the Issue

With the fact that this a simple issue, it may freak you out as the website or the application is not opening as you’re expecting. For that, you will need to understand the issue and what are the possible corrections/adjustments you need to do to resolve the issue.

Now that we have identified the potential causes of the error, let’s explore some effective solutions to resolve it:

1. Check Your Network Connection

The first step is to ensure that your network connection is stable and functioning correctly. Verify that you have a stable internet connection and try reconnecting to the remote host. If the error persists, you may consider contacting your internet service provider to check for any network issues.

2. Review Firewall Settings

If your system has a firewall enabled, you should review its settings to ensure it is not causing the connection issue. Temporarily disabling the firewall or adding an exception for the specific connection you are trying to establish can help identify if the firewall is the culprit.

I’ve – personally – seen this with other clients a lot of times. And I mean it! You will need to review your internal network firewall. If the place you’re connecting to the internet at is using a firewall. This firewall’s rules could block certain connections. So, you may need to try another network or a different connection.

3. Update Software and Operating System

Outdated software and operating systems often lead to compatibility issues, including connection errors. Make sure all your software, including applications and drivers, are up to date. Check for any available updates and install them accordingly.

4. Try Alternate Connection Methods

If you are consistently experiencing the “Connection Closed By Remote Host” error, it may be worth trying alternative connection methods. For example, if you are using a specific client software, consider using a different client or establishing the connection through the command line interface. This can help identify if the issue lies within the software you are using.

5. Contact the Remote Host Administrator

If all else fails, it is advisable to reach out to the administrator of the remote host or server. They might be able to provide specific insights into the cause of the connection closure and guide you towards a solution. Be sure to provide detailed information about the steps you have taken to troubleshoot the issue.


Encountering the “Connection Closed By Remote Host” error can be frustrating, but with a systematic approach to troubleshooting, you can resolve the issue and regain access to the remote host.

By checking your network connection, reviewing firewall settings, updating software, exploring alternate connection methods, and seeking assistance from the remote host administrator, you can overcome this error and continue your intended tasks seamlessly.

Remember to stay patient and persistent, as resolving connection issues often requires trial and error.

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