I've used a Slingbox Pro since it was released. Worked fine up until July. I was in Honolulu and it worked the last part of June. All of a sudden, it stopped working over the internet, slingbox.com, and iPhone. I had someone at home reset everything - NADA. When I returned home, I could not get anything to work. It kept saying it could not connect and to make sure slingbox is working properly and connected to the internet. I ended up trashing everything and re-downloading the software and hard re-setting the slingbox. I also disconnected the slinglinks.
I was able to get back up and running on slingbox.com and iPhone, but still cannot connect directly over the internet.
All software and firmware are up to date. Using a Macbook Pro with Snow Leopard, iPhone 4.0.