: A documented defect in Cisco DNA Center versions 2.2.3.x, 2.3.3.x, and 2.3.4.x where the core image file downloads successfully, but the accompanying ISSU compatibility matrix fails due to metadata discrepancies.
After syncing, restart the controller’s services and retry the download. : A documented defect in Cisco DNA Center versions 2
Then restart the image management service: the error appears.
: In Catalyst Center 2.3.7.9, this error can also trigger if the product is not properly registered or approved to call the download service. : A documented defect in Cisco DNA Center versions 2
Edit /opt/crosswork/etc/proxy.conf :
When you schedule an image download for a device group, Crosswork contacts software.cisco.com via REST API. If the transaction ID from Cisco’s catalog does not match the expected hash, the error appears.