der Reinstall nicht hilft.
IPv6: 2a02:0180:0006:0001:0000:0000:0000:0738
ping6 2a02:0180:0006:0001:0000:0000:0000:0738
PING 2a02:0180:0006:0001:0000:0000:0000:0738(2a02:180:6:1::738) 56 data bytes
From 2001:41d0:2:c1d2:200:c0a8:xxxx icmp_seq=1 Destination unreachable: Address unreachable
From 2001:41d0:2:c1d2:200:c0a8:xxx icmp_seq=2 Destination unreachable: Address unreachable
From 2001:41d0:2:c1d2:200:c0a8:xxx icmp_seq=3 Destination unreachable: Address unreachable
^C
--- 2a02:0180:0006:0001:0000:0000:0000:0738 ping statistics ---
6 packets transmitted, 0 received, +3 errors, 100% packet loss, time 5013ms
ssh -v 2a02:0180:0006:0001:0000:0000:0000:0738
OpenSSH_7.2p2 Ubuntu-4ubuntu2.8, OpenSSL 1.0.2g 1 Mar 2016
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug1: Connecting to 2a02:0180:0006:0001:0000:0000:0000:0738 [2a02:180:6:1::738] port 22.
debug1: connect to address 2a02:180:6:1::738 port 22: No route to host
ssh: connect to host 2a02:0180:0006:0001:0000:0000:0000:0738 port 22: No route to host