Minimum cnMaestro version should be 3.0.4.
Upgrade the External E2E controller first following this link and then the nodes (where External E2E is used)
When using onboard controller, its recommended to upgrade the whole mesh together.
We are currently using an on-premises E2E controller V1.1
The VM is running OVA: 1.0.1-r2 with Patch: 1.1.0-r1
Can we just apply the new patch for V1.2?
Thank you for the reply and details on upgrading. We ran into an issue previously where the E2E controller VM needed internet access to update to a new patch version. Is it still a requirement that the E2E needs internet access to perform the patch update?