How can QuickBooks Error Code 12045 be resolved?

There are various ways to fix Quickbooks Error code 12045. Some of the basic methods are:

Solution 1: Checking and rectifying date and time. 

From the bottom right corner of your system, right click on the clock on the desktop taskbar. 

In the tab which opens, select the option of Adjust date and time. 

Now, make a click on Change date and time. 

You can set the correct date and time from here. 

Once you set the time, click OK. 

Now, you have to close these windows and open the QuickBooks again.

Solution 2: Changing the internet connection settings.

To fix QuickBooks Error code 12045, you must make changes to the internet settings: 

The very first task is to open the Quickbooks desktop and then reach its help menu. 

From the help menu, select the Internet connection setup.

In the options which appear, choose ‘USe my computer’s Internet Connection Settings to establish a connection when this application accesses the internet’. 

To proceed further, click on Next and select the tab of Advanced Connection settings.

Herein, locate the ‘Restore Advanced settings and then press OK. 

Close the QuickBooks and reopen it again. 

Now, you need to update the QuickBooks.

Solution 3: Configuring firewall settings. 

Incorrect firewall settings does not allow Quickbooks communication that can result in QuickBooks Desktop Error 12045. Thus it is recommended that you make the following changes to the firewall port: 

You have to enable Port 80 and Port 443 in the firewall settings and make sure to provide access to these files:

IntuitsyncManager.exe

QBCFMonitorService.exe

QBDBMgr.exe

QBDBMgrN.exe

QBGDSPlugin.exe

QBLaunch.exe

QBServerUtilityMgr.exe

QBW32.exe

AutoBackupExe.exe

Dbmlsync.exe

DBManagerExe.exe

FileManagement.exe 

Solution 4: By deleting other installations of QuickBooks. 

If the same version of the QuickBooks is installed twice in your system. then , it can cause the occurrence of Quickbooks update errors, like QuickBooks Update Payroll Error, specifically QuickBooks Desktop Error 12045. 

So, it is recommended that you delete the copy of QuickBooks. 

Deleting the multiple accounts will help you to get rid of QuickBooks Desktop Error 12045. For this: 

Go to downloads and then to the update section of the Quickbooks.

Select the country, also select the product. 

Now, choose the version. 

Go to the search option. 

Update the version you need to keep in your system.

Solution 5: Updating Quickbooks

Open Quickbooks.

Go to the help menu. 

Hover to the update Quickbooks option. 

Let the Quickbooks get updated. 

Contact QuickBooks Error Support To Resolve QuickBooks Desktop Error Code 12045

Different versions of QuickBooks in the same system can also result in the occurrence of error. Hence, it is advised to keep only one version of QuickBooks. You can delete the rest. I believe these methods would definitely help you in fixing QuickBooks Payroll Errors. But, if the error still persists and you are unable to resolve QuickBooks Desktop Error Code 12045, you don’t have to worry at all, You can reach out to QuickBooks Enterprise Support at +1-888-485-0289 and our dedicated team of experts will help you in resolving all your issues.