Subscription status: "invalid: subscription information too old"

[rsiera]

My subscription page says that the Subscription status is "invalid: subscription information too old".
When I click the "Check" button, after a while the message "Connection error - Timeout." appears.
Where can I find more information what is going on?

 

[Moayad]

Hi,

Can you please check the DNS on the PVE side if everything is ok?

 

[rsiera]

Your suggestion, together with the support of the shop team, brought me on the right path.
Ping to shop.proxmox.com resulted in an IP6 address which indeed does not work on our LAN. We do not support IP6.

The support team confirmed:

with the change of our subscription-check introduced in October 2022, the code
does not fall back to IPv4 on setups that have IPv6 addresses configured,
but where the outbound connections on IPv6 does not work.

Either configure your host to correctly be able to access shop.proxmox.com via IPv6
or disable IPv6 on the affected node:
I assume can use the docs from Proxmox VE https://pve.proxmox.com/pve-docs/chapter-sysadmin.html#_disabling_ipv6_on_the_node

The manual was a little too cryptic for me, but I followed these instructions and that work perfectly.