Partial errors with Cloudflare tunnel

[tilimirti]

A few days ago I set up a Cloudflare tunnel on a dedicated Ubuntu Server VM to remotely access Proxmox.
I can log in without problems, but when I try to turn a VM on or off it gives me the error "Connection error - server offline?". I can only see the statistics on "Summary" and the VM on "Console" with noVNC.
I can't even open the Proxmox shell when I'm connected to the Tunnels.
Do you have any ideas?

 

[ControlsEE]

I had this issue and found it was a problem with the web blocking on my work's network. Call to explain that I wasn't doing anything nefarious and it works again after whitelisting my public hostname.

 

[tripheo2410]

@tilimirti did you able to resolve the issue? I have the exact problem

 

[ControlsEE]

@tilimirti did you able to resolve the issue? I have the exact problem

Yes, it was a firewall issue where it was blocking my public hostname on the network I was accessing from.

 

[tariqsaidofficial]

I'm facing the same problem and i have ports allowed 80,443, 8006, and 5900 but still I can't access from my URL domain it's working perfectly from the local IP

 

[volcan96]

Dunno if this is your issue, but disabled chunked encoding worked for me: https://forum.proxmox.com/threads/error-501-for-proxmox-subdomain-via-cloudflared-tunnel.155865/