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Error: Internet connection error: unknown error during payroll or QuickBooks update

You may receive the above error when updating payroll or the QuickBooks program.

Why this is happening

 This error can be caused by any of the following:

  • Internet security and personal firewall settings
  • Microsoft Internet Explorer security settings
  • System date and time settings
How to fix it

To resolve this issue, verify firewall and Internet security settings, Microsoft Internet Explorer settings, and system date and time settings.

  1. To verify or change Internet security and personal firewall settings:
    1. Refer to your Internet security and firewall software documentation for instructions on how to adjust the settings (including port settings) to allow QuickBooks Desktop to update.
    2. Verify that the two QuickBooks Desktop files listed below are allowed access through your firewall software to allow the update to download:
      • qbw32.exe (QuickBooks executable file)
      • qbupdate.exe (QuickBooks update executable file)
    3. Verify that port 80 and port 443 are not disabled.

Note: Due to the complexity and variety of available systems and software, we are unable to provide directions for checking the specifications above. If you need further assistance, check with your system or network administrator, the vendor from whom you purchased the firewall software, or a local computer consultant.

  1. To verify Microsoft Internet Explorer settings:
    1. Open Internet Explorer.
    2. Select the Tools menu and select Internet options.
    3. Click the Advanced tab.
    4. Scroll down to the Security section.
    5. Select the options Use SSL 2.0 and Use SSL 3.0.
    6. Click OK.


  1. To verify the system date and time settings:
    1. Right-click the time display in the system tray of your Windows taskbar, typically located at the lower right of your screen.
    2. Select Adjust Date/Time.
    3. Set the correct date (make particular note of the year) and time.
    4. Click OK.
KB ID# SLN40042
10/26/2016 2:10:15 PM
PPRDQSSWS403 9138 Pro 2017 ccb093