Proxmox subskription update and firewall

Jan 14, 2026
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Hello together,

I got a problem with my subskription update in regards to firewall rules from an external firewall.
If I activate the external firewall I can't get the update, but the strange thing is, that no traffic coming from my node (OUTGOING) is blocked, it is all accepted.

All the other things are working, I can ping shop.proxmox.com with IPv4 and IPv6, I can update the repositories, but only the subskription is not updated and times out.

Does someone know which Port I have to open, to get sure I can update my subskription?

All what I read didn't help.

Thanks


Martin
 
Is the node able to connect to shop.proxmox.com via https (port 443) and is the firewall not breaking the encryption with its own certificate?

If you have further issues, please open a ticket at our technical support portal (https://my.proxmox.com). There we can take a closer look at what might go wrong. The forum is not the best place to share potentially sensitive infos
:)
 
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Well, it looks like it's my own problem, even I did not find the issue yet, but the connection to shop.proxmox.com on https times out, when the firewall is in use.

root@server:~# wget https://shop.proxmox.com
--2026-02-12 18:14:50-- https://shop.proxmox.com/
Resolving shop.proxmox.com (shop.proxmox.com)... 2a01:7e0:0:424::2, 79.133.36.249
Connecting to shop.proxmox.com (shop.proxmox.com)|2a01:7e0:0:424::2|:443... failed: Connection timed out.
 
Does it work when you stop your PVE-Firewall ( systemctl stop pve-firewall ) ? Usually outgoing connections are always allowed, even with the firewall enabled (and E/R incoming connections aswell).