In recent times if you ever come across the error message that reads itself as ‘Unable to Connect to Host on port 57573 after 4500 ms’. Then you are not alone who has come across this error. This has now become a common problem that stops users from reaching out to their local server. This causes huge issues, while you are trying to get your work done. In this blog, we are going to unravel sides and, hence, to gain the knowledge of the same, keep scrolling. 


This connection or the error could occur due to several issues but one major issue is that of compatibility. Compatibility issues between your Browser and certain versions of Selenium, a tool used for automating web browsers. In easier words, you can say that these errors occur when things go wrong, with your system or the software setup. 

Understanding Causes of Connection Failure

One of the biggest reasons for connection failure is because of trying to access a web server through the wrong port. This may occur when your port is busy with another application like Skype, RSS reader, or other web servers. Another cause of such an error might be not having enough permissions to reach certain files or directions on the local web server. 

Simple Troubleshooting 

To begin troubleshooting you need to make sure that your servers are awake and working perfectly. You must give your firewall setting a quick check to keep moving things smoothly. 

Verify the Server

You need to open your task manager on your computer and look for Apache2 or a similar web services process in the list of running applications. If you are able to see the server is up and working fine then you are good to go. 

Checking Firewall Settings

Firewalls act as a gatekeeper for deciding which data can enter or leave your computer. But at times these guards block the port needed for severs like XAMPP or WAMP to work properly on your Windows Operating system. So fix such issues you need to go to the setting of firewalls and find the option that let’s you access certain apps through firewall. Form the list find the XAMPP or WAMP and check the box. 

Advanced TroubleShooting

In the section for advanced troubleshooting, we explore in detail expert techniques for resolving challenging connection issues. We examine how to modify preferences in commonly used web development tools and handle services on your OS to ensure smooth operation once more.

Change Apache Web Server Port in XAMPP or WAMP

  1. Initially, you must halt the Apache service if it is currently active. This process ensures that any modifications you make will be implemented accurately and smoothly, with no issues arising. 
  2. Next, delve into the core of your server by accessing the `httpd.conf` file in either XAMPP or WAMP and locate the sections containing “Listen 80” and “ServerName localhost:80”. These instructions instruct Apache to utilize port 80. Revise to “Listen 8080” and “ServerName localhost:8080”. 
  3. This transfers your ‘door’ from port 80 to port 8080, minimizing the possibility of conflicts with other apps. 
  4. Save the `httpd.conf` file and restart Apache using the control panel of either XAMPP or WAMP after making the edits.
  5.  In case something goes wrong – for example if you mistakenly close WAMP without stopping its services – simply open Task Manager and ensure there are no remaining instances of WAMP running before attempting again.

Restart LXSSManager Services for WSL

  1. Use the WINDOWS KEY + R shortcut to launch the RUN box. This opens a fast access box in which you can input commands. Type in SERVICES.MSC and press ENTER. This deed will bring up the Services window on your computer, where you can see a list of all background processes and services currently active on your Windows system.
  2. Search for LXSSMANAGER on this list as it aids in the smooth functioning of Windows Subsystem for Linux (WSL).
  3. To initiate a restart of LXSSManager, simply right-click on it and select the “Restart” option from the menu. Restarting this service can solve any bugs or problems with WSL not connecting or functioning properly.

Access Localhost With the Port Number

To access the local web server, type LOCALHOST, followed by a colon and the port number, into your browser’s address bar. If you are using Apache Web Server on XAMPP or WAMP and have configured it to use port 8080, you should type in “LOCALHOST:8080” as an example.

Disclaimer: “All the details mentioned here are based on our own research and are meant only for informational purposes.


You might think that fixing is a tough task but it is doable with the right steps. To help you out in this process, we have mentioned the complete information here. Give a read to the provided information to understand about the same.