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You can try to change agent-tls-mode setting in the rancher cluster where you are configuring Harvester from "Strict" to "System Store" to see if this helps you with this issue.

Thanks for the response, I had tried this in past but no luck will try again also tried installing rancher with -- set skip tls option to avoid any cert chk or issues any other idea to surpass this? it sounds like harvester is trinng to talk to rancher and harvester is not trusting rancher so may be some solutions at harvester end ? or cert copy at harvester trust store locations from rancher etc ? been trying to resolve this from a week now PS: 192.168.70.172 is my Rancher IP (using nodeport svc)