>>>Sometimes when I try to send messages I get:
>>>The page cannot be displayed
>>>The page you are looking for is currently unavailable. The Web site might be experiencing technical difficulties, or you may need to adjust your browser settings.
>>
>>The problem seems to be local. It might be a cache issue or a problem in the routing.
>
>I had similar problems before. It may work fine for a long time, then, all of a sudden, I start getting this error. What would be your suggestion to fix this problem?

I have no idea. If I find something, I'll let you know.