Several bugs have been tracked for this behavior, including CSCwd15921 , which affects releases 2.2.3.x through 2.3.4.x.
Check if there is a pending update for the Cisco Trustpool and apply it to restore secure communications. 4. Verify Proxy and Connectivity Several bugs have been tracked for this behavior,
Expired certificates in the Catalyst Center Trustpool can break the secure communication required to fetch metadata from software.cisco.com. Verify Proxy and Connectivity Expired certificates in the
Cisco released Field Notice FN74033 , stating that older versions of DNA Center will fail to download metadata after , due to certificate changes. If you are on an older release, an upgrade to a fixed version (e.g., 2.3.5.x or later) is required. Comparison of Solution Paths Effectiveness When to Use Manual Import Urgent upgrades or persistent API errors. Credential Refresh Authentication or account permission issues. Trustpool Update Certificate or SSL handshake failures. Software Upgrade For long-term fixes of known bugs (e.g., CSCwd15921). Comparison of Solution Paths Effectiveness When to Use
Use the CLI to test connectivity to cloudsso.cisco.com and software.cisco.com .
Sometimes the token between your appliance and Cisco's servers becomes "invalid": Go to .