Failed Validation Error Code 54

[pjaquette]

I'm trying to file my Federal 1041 and CA 541 for a trust with TurboTax Business. I keep getting Failed Validation Error Code 54, even though I've downloaded all available updates. This seems to have been a problem in prior years as well. Is there a fix available?

[PatriciaV]

If you're still having trouble validating your federal return, we recommend you try a manual update: Manually Update TurboTax for Windows Software.

We also recommend suspending any antivirus software and/or a VPN.

[pjaquette]

Does this link manually update TurboTax Business, or just regular TurboTax? I am reluctant to download a random piece of software. Can't TurboTax fix the problem in the software?