Why Safari Help frequently "not available?"

Question

Although I am connected to the Internet, Safari Help topics frequently come up as "not available" as though I were not connected (I've noticed this happens on other Help menus too). Is it my download speed?

Answer 1

Sometimes just closing and reopening the Help window will clear up the problem. If it doesn't, log out or reboot and try again. Otherwise, you may need to delete the Help cache.
Back up all data.
Triple-click anywhere in the line below on this page to select it:
~/Library/Caches/com.apple.helpd
Right-click or control-click the highlighted line and select 
Services ▹ Reveal
from the contextual menu.* A Finder window should open with a folder selected. Move the selected folder to the Trash. Log out, log back in, and test. Help pages will be slow to load at first.
If that doesn't work, the problem may be caused by network conditions. It may go away by itself, though I can't say how long you should wait.
   A persistent failure to load help data has been reported as an issue with satellite networks. Test on a different network, if possible. I've also seen at least one report that Photo Stream in iCloud can mysteriously interfere with Help. I'm not sure whether that's true, but try disabling Photo Stream, if applicable.*If you don't see the contextual menu item, copy the selected text to the Clipboard by pressing the key combinationcommand-C. In the Finder, select
Go ▹ Go to Folder...
from the menu bar, paste into the box that opens (command-V). You won't see what you pasted because a line break is included. Press return.