Hi LieraMarie,

This should sum up everything I've done and discovered in the last week in case anyone else has the issue:

1.  When the problem occurs, the QuickBooks splash screen pops up briefly on the screen and then closes.  No error message is displayed.  Event Viewer doesn't show any error messages regarding QuickBooks either.

2.  I've verified the services are still running after QB crashes at the splash screen.

3.  The problem ONLY occurs on a single server (call it Server TS) where I first tried to update QB Enterprise 2022 R3 to R5.  I am unable to use the Update option in the application itself, that always fails with the error "unable to verify the digital signature".  It is when I manually update by downloading and installing the update file that QB crashes at the splash screen.  It also happens when I download  and install the full QuickBooks22 installer that includes R5 

After a lot of troubleshooting and digging around, I discovered that when I download the latest QB Enterprise 2022 installer file (and R5 update file) onto Server TS, the digital signature file attached to the installer displays the error:

One of the countersignatures is not valid.  The file may have been altered.

If you select "View Certificate", the error becomes:

The timestamp signature and/or certificate could not be verified or is malformed.

The digital signature on the installer download with my other servers doesn't have this issue.  The digital signature on the R3 installer that I downloaded in February to upgrade from 2019 to 2022 doesn't have the same digital signature error, therefore that is the version I currently have installed on the Server TS with updates disabled.

I then did a fresh installer download on a different server (Server DC) in the same domain as Server TS and that installer file also has a good digital signature attached to it.  It subsequently installed without an issue on Server DC.  Thinking it could be a firewall problem, I copied the good installer download from Server DC to Server TS and once again, the digital signature is bad.  I removed the AV software on Server TS and went through it all again - still a bad digital signature file.

Therefore, the problem lies within Server TS.  Since I've already spent hours trying to 'fix' the installer files, I'm going to rebuild the server tonight and see if that permanently resolves the problem.

To answer your troubleshooting questions:

I downloaded QuickBooks Tool Hub and ran it dozens of times - it didn't fix it.  I uninstalled and reinstalled at least a dozen times.  I then followed all of the steps in the Fix issues when QuickBooks has stopped working article and it didn't do anything either.  I then followed various steps I found online to no avail.

FYI - all of the servers used in testing/production have the same OS version and are updated to the same levels.  My hope is a new server build will fix it.  If not, I'll be back on this forum.

Thx