Koala, I can't help really as I don't have Skype, but I would try searching in
http://forums.whirlpool.net.au/
It's an Aussie site.
e.g. I did a search for Internet loses connection
http://forums.whirlpool.net.au/forum...fm/836281.html
EDITED TO ADD: Scrap all that. I ran some searches. There's one question in there similar to yours but it's never been answered.
Have you contacted your ISP Help desk?