== resolved / workaround ==
I had the same problem.
In my case I went to System > Settings > General
I activated the option "Prefer to use IPv4 even if IPv6 is available"
then it worked fine.
I think it's a bug.
I had the same problem.
In my case I went to System > Settings > General
I activated the option "Prefer to use IPv4 even if IPv6 is available"
then it worked fine.
I think it's a bug.