Let's Encrypt certificate never validate due to root CA revocation

[w0mby]

Due to root CA revocation Let's encrypt certificate are not validate anymore.
issue has been reported to electron electron/electron#31212
Fix & release has been made by electron.

[shaoran]

I have same issue trying to connect my mosquitto broker with valid let's encrypt certificates, I just get an error.

[soile1991]

I get the same error

[marinofra]

You can download the root certificate from here and add it your connection options via:

1. Advanced
2. Certificates
3. Server Certificate (CA)

Don't forget to save the configuration after testing if it works correctly.

Until the application is updated to a version of Electron where this was patched or the CA gets baked into the code with an hacky workaround, this the only way to fix the problem.

[adrianburkard]

Hi @marinofra . Thanks for the workaround. This worked for me as well. I struggled a lot with this and thought something wit my mqtt broker setup is wrong.
Is there a proper fix for this already? Like a new version of mqtt explorer?

[moritzj29]

I also stumbled upon this today... really frustrating to see that its the tool that is broken, not my new certificate setup...