Do you maybe have network troubles? Do you maybe have a firewall that may restrict the access to our servers? Can you ping shop.proxmox.com
?
The problem is the server resolver shop.proxmox.com with ipv6 and only set ipv4.
root@pmg01:~# ping shop.proxmox.com
PING shop.proxmox.com(shop.proxmox.com (2a01:7e0:0:424::2)) 56 data bytes
^C
root@pmg01:~# host shop.proxmox.com
shop.proxmox.com has address 79.133.36.249
shop.proxmox.com has IPv6 address 2a01:7e0:0:424::2
root@pmg01:~# ping 79.133.36.249
PING 79.133.36.249 (79.133.36.249) 56(84) bytes of data.
64 bytes from 79.133.36.249: icmp_seq=1 ttl=54 time=11.6 ms
64 bytes from 79.133.36.249: icmp_seq=2 ttl=54 time=11.6 ms
64 bytes from 79.133.36.249: icmp_seq=3 ttl=54 time=11.5 ms
^C
doing ping witch the ipv4 address, no problem.
I have forced the name in the host file only with ipv4.
root@pmg01:~# ping -4 shop.proxmox.com
PING (79.133.36.249) 56(84) bytes of data.
64 bytes from shop.proxmox.com (79.133.36.249): icmp_seq=1 ttl=54 time=11.6 ms
64 bytes from shop.proxmox.com (79.133.36.249): icmp_seq=2 ttl=54 time=11.7 ms
64 bytes from shop.proxmox.com (79.133.36.249): icmp_seq=3 ttl=54 time=11.6 ms
^C
--- ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2003ms
rtt min/avg/max/mdev = 11.559/11.616/11.726/0.077 ms
The problem was solved.
Thansk you.