Hello,
I don’t have experience with Kemp, could you provide more details how it was configured and how it supposed to work? Seems like you have some re-routing there and that’s why it’s showing what you see.
But if I made this following configuration, that’s does not work.
Client (https://adminintra.domain.com/percona) → 443 Loadbalance Kemp → 443 → Container Podman PMM
I have found some information, about this error “{“code”:16,“error”:“Unauthorized”,“message”:“Unauthorized”}”. Some of else, looks with Grafana.ini file configuration with the API module.
I hope that this explain help you more. I have also open a case directly at Kemp.