How to Troubleshoot 3CX Server Errors.

When your 3CX server stops working, it’s usually due to some kind of configuration error (3CX server errors). We’ve put together a list of some most common problems you are likely to encounter, from the mundane to the catastrophic.

Chances are one of these steps will fix your problem, but if not, be sure to contact 3CX Support for assistance.

What causes 3CX errors?

If you’re seeing errors when trying to use 3CX, it’s likely due to one of the following issues:

  • Incompatible software: Ensure you use compatible versions of 3CX and your operating system.
  • Hardware requirements are not met: Check that your system meets the minimum hardware requirements for running 3CX.
  • Incorrect settings: Ensure that your 3CX settings are correct, including the IP address, port number, and SIP trunk settings.
  • Insufficient resources: If you’re on a shared hosting plan, ensure you have enough resources allocated to your account. You may need to upgrade your account or switch to a dedicated server.

How to fix 3CX errors

If you’re a 3CX user, you know that errors can happen from time to time. But don’t worry, most of these errors can be fixed with a few simple steps.

Here are some tips on how to fix common 3CX server errors:

1. Error: “The system cannot find the file specified”

A corrupt or missing file usually causes this error. To fix it, try reinstalling the 3CX software.

2. Error: “3CX services are not running”

This error is usually caused by a problem with the Windows service that runs 3CX. To fix it, try restarting the service or rebooting your computer.

3. Error: “Your license has expired”

If you see this error, it means that your 3CX license has expired, and you need to renew it. You can do this by going to the 3CX website and following the instructions.

Symptoms of an error

When you experience a 3CX Server error, there are a few things you can look for to help identify the issue.

First, check the server logs for any errors that may have been recorded. If you don’t see any obvious errors, try restarting the server and see if that fixes the problem.

If the issue persists, you’re likely experiencing a corrupt database or a configuration issue. In either case, contacting your CX Server administrator or support team is best to help resolve the issue.

Monitoring for Errors

When troubleshooting CX Server errors, it is important to monitor for errors to identify the root cause of the issue. There are a few ways to do this:

  • Check the CX Server logs: The CX Server keeps track of all activity and errors in its log files. These can be found in the “logs” directory of the CX Server installation.
  • Enable debug mode: When debug mode is enabled, additional information about errors will be written to the logs. This can be done by setting the “debug” flag to “true” in the server configuration file.
  • Use a monitoring tool: Various monitoring tools can help identify errors and their causes. Some of these tools include Nagios, Zabbix, and New Relic.
  • Check Event Logs: If you’re having trouble with your CX Server, you should check the event logs first. The event logs can tell you a lot about what’s going on with your server and can help you troubleshoot problems.

How to check event logs in 3CX Server

To check the event logs,

  • open the Event Viewer (you can find it in the Administrative Tools section of the Control Panel).
  • Once the Event Viewer is open, expand the Windows Logs section and click on Application.
  • Scroll through the list of events and look for any that are marked as Error or Warning.
  • Double-click on any of these events to get more information about them.
  • If you see a 3CX server error that says, “The Citrix XTE Service service terminated unexpectedly,” this means that your CX Server has crashed. To fix this, you’ll need to restart your server.

If you don’t see any obvious problems in the event logs, try looking at other log files on your server (such as IIS or SQL Server logs). These other logs may contain information that can help you troubleshoot your 3CX Server errors.

More tips on how to troubleshoot 3CX server errors

1. Check your network connection.

If you’re having trouble connecting to your CX Server, the first thing you should check is your network connection. Ensure that your computer is connected to the Internet and that you have a stable connection.

If you’re using a wireless connection, try moving closer to your router or modem to see if that improves your connection. If you’re still having trouble, you can try restarting your router or modem.

Related reading: How to Extend Wifi Range to Another Building

2. Check the status of the CX Server.

Once you’ve verified that your network connection is working, the next step is to check the status of the CX Server itself. You can do this by visiting the Status page in the Control Panel.

If the server is offline, you’ll need to contact your administrator to have it brought back online. If the server is online but you’re still having trouble connecting, there may be an issue with your account or the server itself. Contact your administrator for further assistance.

3. Monitor CPU Scheduler Usage

It’s no secret that the CPU scheduler is one of the most important components of any computer system. In fact, it’s often said that the CPU scheduler is the heart of the operating system. That’s why monitoring your CPU scheduler usage and checking for any C3X server errors is important.

There are a few different ways to monitor your CPU scheduler usage.

One way is to use the Windows Task Manager. To open the Task Manager, press Ctrl+Alt+Del on your keyboard and then click on “Task Manager.”

Once the Task Manager opens, click on the “Performance” tab. Here you’ll see a graph that shows you your computer’s total CPU usage. If you see spikes in this graph, it could indicate something wrong with your CPU scheduler.

Another way to monitor your CPU scheduler usage is through the Event Viewer. To open the Event Viewer, press Windows+R on your keyboard and type “event viewer” into the Run dialog box. This will open up the Event Viewer application.

Expand the “Windows Logs” node in the Event Viewer and select “System.” Now look for any Warning or Error entries with a Source of “Service Control Manager.” These entries usually indicate problems with services or drivers, which can sometimes lead to issues with the CPU scheduler.

How To Fix Connection Error When Connecting To CX Server

If you’re seeing an error message when trying to connect to your CX Server, there are a few things you can try to resolve the issue.

First, check that the server URL is entered correctly in the Settings tab of the ConnectWise Control Client. The URL should be in the format If the URL is entered correctly and you still see an error message, try restarting the ConnectWise Control Client and then attempt to connect again.

Still, having trouble? Try these tips:

  • Check that your firewall is not blocking access to the CX Server port. The default port number is 443, but it may be different in your environment.
  • Make sure you have a valid SSL certificate installed on your CX Server. Self-signed certificates will not work with ConnectWise Control. You can generate a free SSL certificate using Let’s Encrypt (
  • If you’re using an internal DNS server, ensure it’s configured correctly and that you can resolve the CX Server hostname from all client machines.
  • Check if there is a physical connection between the phone and the system and verify that the configuration on the phone is correct.

If you’re having trouble with your CX Server, you should first check if there is a physical connection between the phone and the system. To do this, verify that the configuration on the phone is correct.

The most common issue is that the phone is not properly configured to connect to the CX server. To fix this, open up the phone’s settings and make sure that the IP address, port number, and protocol are all correct. If they’re not, enter the correct information and save your changes.

Once you’ve verified that the phone is physically connected to the system and that the configuration is correct, you can troubleshoot other potential issues.

Wrapping Up

If you’re seeing errors when trying to use CX Server, there are a few things you can do to try and resolve them. First, check the CX Server logs to see if there is more information on the error. If you’re unsure where the logs are located, check the CX Server documentation for your specific installation. Next, try restarting the CX Server service. If that doesn’t work, you may need to restart your entire computer.

Finally, contact customer support for assistance if you still see 3CX server errors. They may be able to help you resolve the issue or provide additional troubleshooting steps.

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