Dear Team, I have set up a 3-master controller cluster and configured an F5 VIP for both ports 6443 and 9345. When joining the second and third master nodes, I use the F5 VIP instead of the IP address of Master 01. However, the join process fails with the following error:

only https:// URLs are supported, invalid scheme

I also tried modifying the

server

URL in

config.yaml

from HTTPS to HTTP, but the same error is still displayed. Current setup: • 3 master nodes • F5 VIP configured for ports 6443 and 9345 • Joining additional masters through the VIP • RKE2/K3s requires access to the registration endpoint on port 9345 Could you please advise: 1. Whether the F5 VIP on port 9345 should be configured for SSL passthrough or SSL offloading? 2. Whether the VIP must present a valid HTTPS certificate that matches the VIP hostname? 3. If there are any additional RKE2/K3s configuration requirements when using an F5 VIP for master node registration? Any guidance on resolving this issue would be appreciated. Thank you.