wget failed: Connection timed out

Solution 1:

Please read the fine manual about the "risks" of using the --span-hosts (-H) option and how to limit those by adding restrictions:
https://www.gnu.org/software/wget/manual/wget.html#Spanning-Hosts

The --span-hosts or -H option turns on host spanning, thus allowing Wget’s recursive run to visit any host referenced by a link. Unless sufficient recursion-limiting criteria are applied, these foreign hosts will typically link to yet more hosts, and so on until Wget ends up sucking up much more data than you have intended.

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Limit spanning to certain domains -D
The -D option allows you to specify the domains that will be followed, thus limiting the recursion only to the hosts that belong to these domains.

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Keep download off certain domains --exclude-domains
If there are domains you want to exclude specifically, you can do it with --exclude-domains, which accepts the same type of arguments of -D, but will exclude all the listed domains.