You reboot your computer, and before QuickBooks even opens, a small window appears: "QBWC1085: There was a problem with the log file." The sync you rely on for Shopify, Method, or your time-tracking app has stopped, and the popup keeps returning. QuickBooks Web Connector error QBWC1085 happens when the file QWCLOG.TXT is corrupted, locked, or missing. Renaming that file forces Web Connector to build a fresh log, and the error clears in about a minute.

Quick answer: Close QuickBooks and Web Connector. Go to C:\ProgramData\Intuit\QBWebConnector\log. Rename QWCLOG.TXT to QWCLOGOLD.TXT. Reopen Web Connector. It creates a new log file, and the QBWC1085 message stops appearing.

How This Guide Was Prepared

The steps below were checked on Windows 11 against QuickBooks Desktop. The file paths and menu locations match what Intuit documents for the Web Connector log file. QuickBooks Online is a different product and does not use Web Connector or the QWCLOG.TXT file—if you are on QuickBooks Online, this error does not apply to you.

Before making any changes, back up your company file. Go to File > Back Up Company > Create Local Backup. This is a precaution, not a requirement for the fix itself—the log file contains only sync records, not your accounting data.

Start Here: Which Path Fits Your Setup?

The correct fix depends on one question: do you actually use a third-party app that connects to QuickBooks through Web Connector?

If you use Shopify, Method CRM, WooCommerce, a time-tracking app, or any other integration that syncs through Web Connector: Follow Path A. Time needed: 1 to 2 minutes.

If you have never set up a Web Connector integration and do not know why it is running: Follow Path B. Time needed: 2 minutes. This removes Web Connector from startup so the error stops permanently.

If you are not sure: Open the QuickBooks Web Connector from your Start menu. If the list inside is empty, you do not need it. Follow Path B. If you see an app name listed, follow Path A.

Path A: Rename the Corrupted Log File (Keep Web Connector)

Time estimate: 1 to 2 minutes. This is the official fix from Intuit for QBWC1085 . The Web Connector writes every sync action to QWCLOG.TXT. When that file is damaged—by an abrupt shutdown, a disk error, or an antivirus lock—Web Connector cannot write to it and throws QBWC1085 at startup .

Here are the exact steps:

1. Close QuickBooks Desktop completely. Do not just minimize it. Go to File > Exit.

2. Close Web Connector. Right-click its icon in the Windows notification area (the small arrow near the clock) and choose Exit. If you cannot find it, open Task Manager with Ctrl+Shift+Esc, go to the Details tab, find QBWebConnector.exe, and click End task .

3. Open File Explorer. Paste this path into the address bar and press Enter: C:\ProgramData\Intuit\QBWebConnector\log. The ProgramData folder is hidden by default, so typing the path is faster than browsing for it.

4. Find QWCLOG.TXT. Right-click it, choose Rename, and type QWCLOGOLD.TXT. If Windows refuses to rename it, delete the file instead—the result is the same .

5. Reopen Web Connector. Go to your Start menu, type "QuickBooks Web Connector," and open it. It creates a brand-new QWCLOG.TXT automatically.

6. Check the result. The QBWC1085 window should not appear. In the Web Connector, select your app and click Update Selected to confirm syncing works .

If this fix fails: The log file may be locked by antivirus software or a backup program. Restart your computer, then try the rename again before any other program loads. If the folder path does not exist at all, Web Connector may not be installed correctly—reinstall it from Intuit's official download page.

Quick Check: Is the Log File the Real Problem?

Open C:\ProgramData\Intuit\QBWebConnector\log and look at the file size of QWCLOG.TXT. If it is 0 KB or unusually large (several megabytes), it is almost certainly corrupted. A healthy log file is typically a few hundred kilobytes. If the file is missing entirely, Web Connector created it in a different location—search your C: drive for QWCLOG.TXT to confirm.

Path B: Remove Web Connector from Startup (No Third-Party Apps)

Time estimate: 2 minutes. If you do not use any integration that relies on Web Connector, the simplest fix is to stop it from launching. The error disappears because Web Connector never runs to report it .

1. Sign in to Windows as an administrator.

2. Open File Explorer and go to: C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup

3. Find the shortcut named QuickBooks Web Connector.

4. Right-click it and choose Delete.

5. Restart your computer. The QBWC1085 window should not appear.

This does not uninstall Web Connector. If you later set up an integration that needs it, you can re-enable it from QuickBooks by going to File > App Management > Update Web Services .

If this fix fails: Check whether Web Connector is launching from a different startup location. Open Task Manager, go to the Startup tab, and look for QuickBooks Web Connector there. Right-click and select Disable if it appears.

What QBWC1085 Actually Means for Your Data

The error sounds alarming, but it does not indicate a problem with your company file or your accounting data. QWCLOG.TXT is a diagnostic record of sync activity—nothing more. Renaming or deleting it does not remove any transactions, connections, or app settings .

What the error does affect is syncing. While the QBWC1085 window is open, Web Connector may show the connection as inactive, and your third-party app cannot push or pull data. After you click OK, Web Connector continues running without a log, which means you lose the diagnostic trail but syncing may still function . The rename fix restores both the log and normal sync behavior.

When to Escalate

If the QBWC1085 error returns after you rename the log file, the problem is not the log itself. Common causes include insufficient folder permissions, antivirus software locking the file, or a damaged Web Connector installation .

First, check permissions. Right-click C:\ProgramData\Intuit\QBWebConnector, choose Properties, then the Security tab. Your Windows user account needs Modify rights on this folder. If it does not, click Edit and add the permission.

If permissions are correct and the error persists, Web Connector may need a clean reinstall. Uninstall it from Control Panel > Programs and Features, then download the latest version from Intuit and install it. You will need to re-add your .QWC application file afterward.

For persistent sync failures that return after the log is rebuilt, the issue may be with the third-party app's connection settings rather than Web Connector itself. If you want a technician to review your Web Connector configuration and log files with you, call +1-888-718-7888 for a free consultation with the Data Service Team.

Quick Questions and Answers

What causes QuickBooks Web Connector error QBWC1085?
The error appears when QWCLOG.TXT, the Web Connector log file, becomes corrupted, locked by another program, or inaccessible due to folder permissions. An abrupt shutdown during a sync is a common trigger .

Is my QuickBooks data at risk when QBWC1085 appears?
No. The log file records sync activity only. Renaming or deleting it does not affect your company file, transactions, or app connections. Back up your company file anyway as a standard precaution .

Where is the QWCLOG.TXT file located?
The full path is C:\ProgramData\Intuit\QBWebConnector\log\QWCLOG.TXT. The ProgramData folder is hidden in Windows by default. Paste the path directly into File Explorer's address bar to reach it .

Why does QBWC1085 appear every time I start my computer?
Web Connector launches at Windows startup. If the log file is corrupted, it reports QBWC1085 before you even open QuickBooks. Renaming the log fixes it. If you do not use Web Connector, remove it from the Startup folder .

Can I just delete QWCLOG.TXT instead of renaming it?
Yes. Deleting the file forces Web Connector to create a new one, same as renaming. Renaming is slightly safer because it preserves the old log in case a technician needs to review it later .

What does "Web Connector will continue without a log file" mean?
After you click OK on the QBWC1085 message, Web Connector keeps running but stops recording sync activity. Your third-party app may still sync, but you lose the diagnostic log until the file is reset .

Do I need Web Connector if I only use QuickBooks Online?
No. QuickBooks Online uses browser-based integrations and does not rely on Web Connector or the QWCLOG.TXT file. The QBWC1085 error only applies to QuickBooks Desktop .

How do I stop Web Connector from launching at startup?
Open File Explorer and go to C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup. Delete the QuickBooks Web Connector shortcut. You can also disable it in Task Manager under the Startup tab .