If you see
connection timed out
r(2);
then an Internet connection has timed out. This can happen when
a. the connection between you and the host is slow, or
b. the connection between you and the host disappeared and so
eventually "timed out".
For (b), wait a while (say 5 minutes) and try again (sometimes pieces of
the Internet can break for up to a day, but that is rare). For (a), you
can reset the limits for what constitutes "timed out". There are two
numbers to set.
网速没问题,试了好多次都是这样