Originally Posted by John at Webflyer
We believe that one of the flyertalk web servers is on a blacklist and the other is not, which is why the problem is intermittent. There's not much we can do about it except wait for the sewrver to fall off the blacklist.
You could contact your ISP.
That supposition definitely falls within the realm of possibility. However most of us are small fish when it comes to talking to Yahoo, Google and MSN. It would be great if Flyertalk could try to fix this, given you have the resources that is.