When my brother uses any of his browsers to try to go to olbert.com, or www.olbert.com, he gets redirected to a non-existent site (which was a valid site I used to operate). This occurs in both Firefox and Chrome, on his machine.
When I try to go to either site, I end up at a valid site (the master blog page for a set of WordPress blogs I run). This is true in both Chrome and Firefox.
I'm confused as to why the same URL would take two different computers to two different locations. FYI, we've both cleared our browser caches, with the same results.