To address the issue, do the following:

1. Log on to the Business Support Portal.
2. Request a temporary code then use it to access your account.
3. Click on your Account Name > Profile.
4. Toggle off the 2FA, then click Disable.
5. Toggle on the 2FA, then click Set up now.
6. Use TrendConnect App or use another authenticator app to setup 2FA.

If the temporary code doesn't work, contact Trend Micro Technical Support for further assistance.