Heads Up :
The post you are writing will appear in a public forum. Please ensure all content is appropriate for public consumption. Review the employee guidelines for the community here.
During a GUI upgrade from ISE 2.3 to ISE 2.7, we encountered an error of: "STEP 3: Validating data before upgrade...% Warning: Could not connect to new deployment Primary as its certificate is not trusted or valid. Import the valid https certificate ...
Thank you for your thoughts and advice on this. I'm beginning to think the issue may be related to the expired "Default self-signed server certificate" within the Trusted Certificates store. I was not able to delete this certificate before performing...
