Hi @jlou65535,
Thanks for your update! I’m not very familiar with Azure Front Door, so can’t make any recommendations about it, but since your focus is on Jetpack Boost, let’s try to resolve the issue related to Critical CSS generation.
It seems like the Jetpack connection is still interrupted, which is critical for Boost to function properly. Please follow these steps to try reconnecting:
- Reinstall Jetpack: This can help resolve any connection issues. You can follow our guide here: Reinstall Jetpack, in case you didn’t try that yet.
- Check for any conflicts: You’ve already disabled W3 Total Cache and you could also temporarily disable any other caching tools (such as Azure Front Door) to check if they’re interfering with the connection or the Critical CSS generation.
Once the connection is restored, try enabling Jetpack Boost again and see if the Critical CSS error is resolved.
Let us know how it goes or if you need further help!