Error -6123,0

I understand how you want to accomplish a task without wasting much of your time, I'll guide you on how you can fix this Asater.

Generally, you'll experience this error when MacAfee software is installed on your computer. But, if you see the error 6123,0 while restoring your company file (.qbw), make sure to restore it from the hard drive. If you’re restoring your company file from a backup (.qbb), here's what  you can do:
 

1. If your file resides on the network or external storage device, move the backup file to your local hard drive. Don’t open them from an online storage folder or a removable drive.
2. Follow the steps to restore your company file from a back up

If you see the error while restoring a backup (.qbb) on a new computer. You can create a portable company file (.qbm). And then, use it to restore your company file. Here's how:
 

1. Open QuickBooks Desktop on the same computer you used to create the backup company file.
2. Open your original company file as usual (not the backup).
3. Create a portable copy (.qbm) of your company file.
4. Open QuickBooks Desktop on the new computer.
5. Restore your company file using the portable copy (.qbm) instead of the backup.

However, if this doesn't help, let's lower the security setting of your anti-virus and the firewall as well. There are times, these are one of the major factors why you're getting the error. 

Once done, run as administrator in QuickBooks. We need to do this because often files will have to be updated from time to time, and QuickBooks doesn't have the proper permissions to be able to access or update those files. Check out the steps provided below:
 

1. Shut down your computer to close all the running processes.
2. Turn on your system.
3. Search the QuickBooks program that you want to run, such as QuickBooks Desktop or QuickBooks POS.
4. Right-click on the icon and then select the Run as Administrator option.

Lastly, update QuickBooks to the latest release. This will prevent us from experiencing data corruption and file issues.

After that, double-check if you're able to open QuickBooks without getting the error. If so, you can go back and change again the security settings of your anti-virus and firewall of what was previously your default. 

Furthermore, you may also experience unrecoverable errors when using QuickBooks. Learn how to troubleshoot them by following the steps in this article: Troubleshoot Unrecoverable Error.

Please touch base with us if you need help with QuickBooks or if you're receiving errors. We're here to make sure everything is taken care of. Have a nice day ahead!

Hello, @asater! Thanks for sharing the steps you've taken to address the issue.

It must be frustrating to have gone through this situation multiple times. I want you to know that we genuinely care about your experience with our product.

To get to the bottom of this and find a permanent solution, I recommend reaching out to our phone support once again. They have the expertise to investigate the matter thoroughly and create a ticket if needed. 

Here's a simple way to get in touch with them:

1. Go to Help, then select QuickBooks Desktop Help/Contact Us.
2. Click Contact Us.
3. Give a brief description of your issue and select Continue.
4. Sign in to your Intuit account and click Continue and then Continue with my account.
5. We'll email you a single use code. Enter your code and select Continue.
6. Choose to chat with us or Have us call you.

To ensure you reach our support during their operating hours, please check the support hours on our website.

Moreover, I understand that encountering unrecoverable errors in QuickBooks can be troublesome. You can learn how to troubleshoot these errors by following the steps outlined in this article: Troubleshoot Unrecoverable Error.

Please don't hesitate to reach out to us if you need further assistance with QuickBooks or if you encounter any more errors. We're here to ensure everything is taken care of and provide you with the support you need.

The solution provided by the technician I talked to seemed to work - but only for that day.  Today I'm back to having to restart my attempt to open a file a number of times before the file finally opens.  The technician's solution was to hold down ALT while opening the file.  It is supposed to suppress the security issues caused by McAfee.  However, it is not working at all today.

We appreciate you getting back, @asater. Let me point you in the right direction to resolve the error code you encountered in QuickBooks Desktop (QBDT).

I appreciate all the troubleshooting steps you've gone through to fix the error. Since the issue persists, it's best to reach out to our customer support via phone or chat. They have access to a screen-sharing tool that can walk you through the process of resolving error -6123,0. They may also raise an investigation when necessary.

To do that:

1. Go to the Help menu and click QuickBooks Help.
2. Select Contact Us.
3. Provide a brief description of your concern, and click Continue.
4. Log in to your Intuit account, select Continue, then Continue with my account.
5. Enter the single-use code you received in your email and hit Continue.
6. Choose between Chat with us or Have us call you.

Furthermore, you may also encounter data damage in your company file caused by internal or external factors. Here's a list of them and their corresponding resolutions: Top data damage errors in QuickBooks Desktop.

Let me know if there's anything I can help further about fixing error codes in QBDT. We are always available in the Community to assist you. Keep safe.

Error -6123,0 code typically comes with an error message that reads something like "Connection to the QuickBooks company file has been lost."

Here are some troubleshooting steps you can follow to resolve Error -6123,0: