Remote connection to Grafana

Local Grafana on RPI… all great
When I connect via Zerotier I get the log in page but it will not authenticate.
I have spent days fighting with this…any help please.

logger=authn.service t=2023-11-05T09:54:57.965777772Z level=warn msg="Failed to authenticate request" client=auth.client.anonymous error="[org.notFound] failed to get org by name: Main Org."
logger=context userId=0 orgId=0 uname= t=2023-11-05T09:54:57.966215898Z level=info msg="Bad request" error="[auth.client.notConfigured] client not configured: auth.client.form" traceID=
logger=context userId=0 orgId=0 uname= t=2023-11-05T09:54:57.966554285Z level=info msg="Request Completed" method=POST path=/login status=400 remote_addr= time_ms=4 duration=4.016397ms size=95 referer= handler=/login