Network is unreachable (os error 101) (500)

[afsinclair]

I'm getting the following when I try to register my subscription key:

Error checking subscription: https://shop.proxmox.com/modules/servers/licensing/verify.php: Connection Failed: Connect error: Network is unreachable (os error 101) (500)

Anyone know what this means and how to fix it?

Thanks,
Andrew

 

[UdoB]

When I went to activate my subscription (~2 years ago) I've had similar problems. In my case it was a local misconfigration of my IPv6 infrastructure - it was just incomplete, without correct routing. After forcing IPv4 everything went smooth.

Just an idea...