Troubleshooting

Support for QuickBooks Desktop 2020 (ended) & 2021 (EOL 5/31/24) At this time, QuickBooks has discontinued support for 2020 versions of QuickBooks Desktop Pro, Premiere and Enterprise. They will be discontinuing support for 2021 versions on May... Read More

Overview Below lists tested Anti-virus programs that will work with TDO as long as they are configured correctly with listed exclusions. TDO should run fine with most other anti-virus programs as long as they allow settings for exclusions. Only a few... Read More

In order to fully disable UAC in Windows 7, Windows 8.1, Windows 10 and Windows 11 aside from setting UAC to ’Never Notify’ there is an additional step that must be done. Open the Registry editor and browse to the following location:... Read More

Overview How to fix Microsoft .NET Framework. Unhandled exception error when launching TDO installer. Detailed instructions You will need to install TDO workstation under a local Admin Windows account. If you do not want to install with local Admin... Read More

Overview When opening TDO and you get any of the following errors, follow the instructions below. Invalid LF handle error 18 Error 13 Wrong Password Error 8 cannot read file Error validating license Detailed Instructions Note: If you have any of... Read More

Overview Please reference the following article when troubleshooting TDO installations and updates. If after trying the below suggestions, TDO is still non-functioning and/or experiencing issues and/or errors, please contact TDO Support for further... Read More

Automatically clear the cache when closing Google Chrome This is a solution that can be used for a known issue where Google Chrome is automatically shutting down when attempting to load Cloud Letters. First, clear the cache within Google Chrome. See... Read More

Overview TDO must run on the Windows operating system. There are 2 options to have Windows configured on a Mac computer M Chip Limitation TDO server and standalone are unable to run on MAC devices with M chips (M1/M2/M3 etc.) due to hardware... Read More

Overview This article goes over how to properly structure token matching because the structuring is different compared to the old letters module (Microsoft Word). The structure changed because of natural limitations when the infrastructure moved from... Read More

Overview Microsoft made changes to SMTP Authentication, specifically disabling OAUTH support,  that has been blocking TDOs ability to send email. TDO is working on OAUTH2 support, but we currently do not have an ETA on when that will be available.... Read More