QuickBooks Web Connector Could Not Verify Server Certificate

Reset the connection
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When QuickBooks cannot connect or authenticate the connection with the third-party application, users should generally try to reset the connection and find out changes made to the authentication details of the application..

Here are the things that you can do when you get the QBWC1048 error:

💠 Reconnect the third-party application with QuickBooks desktop.
💠 Set the correct authentication details for the third-party application.
💠 Reach out to help from the provider of the application.
💠 Check your internet connection
💠 Check to see the validity and status of your third-party application subscription.

When you’ve ensured that you’ve done all of the above, the QuickBooks web connector should be able to verify the server certificate and then establish a connection.

Restart QuickBooks Desktop
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QuickBooks web connecter won’t verify the server certificate until you open QuickBooks desktop and select a company file that works. Further, you’ve to close all the programs and windows that may be interfering with the network connection.

Here are the steps to restart QuickBooks and resolve error QBWC1048:

💠 Open QuickBooks.
💠 Go to the File menu.
💠 Choose Exit.
💠 Launch the Task Manager by right-clicking on the start menu and selecting the utility.
💠 In the details tab, find any service related to QuickBooks.
💠 Right-click on the service and click on End Process Tree.

Following these steps closes all the background services and processes that are related to QuickBooks so that you can restart QuickBooks and log in to your company file without the QBWC1048 error.

Enter .QWC file for the application
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Ideally, you need to add the .QWC file for your application so that the QuickBooks web connector can verify the server certificate and authenticate the connection. If you’ve not done so already, then you should so that your application starts working with the accounting software.

Here are the steps to download and install the QuickBooks web connector:

💠 Download the QuickBooks web connector installer.
💠 Right-click on the Download File, then choose Extract All.
💠 Find the executable file with the .exe extension, then Right Click on it.
💠 Click on Run as Administrator.
💠 Follow on-screen instructions to complete the installation of the QuickBooks web connector.

If you’ve already downloaded and installed the program, then you can move straight to the next steps. However, if you encounter any error while installing this utility, then kindly restart your system, close all programs related to QuickBooks and then perform the installation.

Now to add an app so that the QuickBooks web connector can verify the server certificate, you can follow these steps:

💠 Go to the File menu.
💠 Choose Update Web Service.
💠 Click on Manage Web Apps.
💠 Click on Set up. When you’re on the app’s website, click on Connect to QuickBooks.
💠 Now launch quickBooks desktop, and click on Done.

You have successfully integrated the application with a web connector. So now you can easily work with the app through QuickBooks desktop.

However, if QuickBooks web connector error QBWC1048 still occurs, then you need to delete the app and then add it again to reset the connection. Here are the steps for deleting an app so that you can add it again:

💠 Go to the Edit menu.
💠 Choose Preferences, then Integrated Applications.
💠 Click on Company preferences.
💠 Choose the app that’s encountering the QBWC1048 error, then click on Remove.
💠 Select Ok.

Now use the steps given earlier to add the app once again to QuickBooks to reset the connection. QuickBooks web connector should now establish the connection without any issues. Further, make sure that you enter the latest authentication details for the application when connecting it with the QuickBooks web connector.