Portainer and Synology 502 error


I’ve installed cloudflared as a container under portainer in it’s own network (tunnel) and have been able to get access to pihole running in container on the same box as well as my QNAP NAS.

However I finding that the 2 portainer containers I have running on two separate boxes are coming up with a 502 error as well as the synology on port 5001. On all of these setups in the Cloudflare cloud setup I’m using https and have enable No TLS Enable.

For the portainer configuration I have also tried the HTTP protocol with the same outcome.

Still cannot figure out what is happening here. Can someone assist?