My word docs links to posts now showing a blank site

I copy paste address bar of a new post into a word doc to return to my posts, or those of others I have posted into, ctrl click the link and I am taken to the post. Works a treat on all forums inc Rhino.
Been doing it for years.
Suddenly the last few days the rhino links see no timer indicator, nothing, just a blank internet screen, yet if I use my bookmark for the Rhino forum homepage I am in.

Whats going on ?
other links in the doc work to other sites.