Fixed by replacing the content of /etc/gai.conf with:
# For sites which prefer IPv4 connections change the last line to
precedence ::ffff:0:0/96100
...
# For sites which use site-local IPv4 addresses behind NAT there is# the problem that even if IPv4 addresses are preferred they do not# have the same scope and are therefore not sorted first. To change# this use only these rules:#
scopev4 ::ffff:169.254.0.0/1122
scopev4 ::ffff:127.0.0.0/1042
scopev4 ::ffff:0.0.0.0/9614
Fixed by replacing the content of `/etc/gai.conf` with:
```
# For sites which prefer IPv4 connections change the last line to
precedence ::ffff:0:0/96 100
...
# For sites which use site-local IPv4 addresses behind NAT there is
# the problem that even if IPv4 addresses are preferred they do not
# have the same scope and are therefore not sorted first. To change
# this use only these rules:
#
scopev4 ::ffff:169.254.0.0/112 2
scopev4 ::ffff:127.0.0.0/104 2
scopev4 ::ffff:0.0.0.0/96 14
```
The last days of the test patch everything worked fine, but as I tried to start the game today I was continuesly stuck in "Checking for updates...".
Fixed by replacing the content of
/etc/gai.confwith:# For sites which prefer IPv4 connections change the last line to precedence ::ffff:0:0/96 100 ... # For sites which use site-local IPv4 addresses behind NAT there is # the problem that even if IPv4 addresses are preferred they do not # have the same scope and are therefore not sorted first. To change # this use only these rules: # scopev4 ::ffff:169.254.0.0/112 2 scopev4 ::ffff:127.0.0.0/104 2 scopev4 ::ffff:0.0.0.0/96 14