Not sure the issue il related to this notice, our VLN issue date is April 2022. On the other hand, the version of our ESA, AsyncOS 13.5.3, is indeed concerned.

Hi, we have the same probleme since 06 h 00 AM (GMT+1) January 14. telnet aggregator.cisco.com 443 from our ESA seems to worksFrom a browser we have this message : {"status": 403, "message": "No valid SSL certificate was sent"}