If you are trying to update the Slingbox firmware and it is stopping at 25% on setup.slingbox.com, you might want to try to download our legacy desktop application. It was made for our older Slingbox, and will let you finish the set up. I have ran into this before, and it is an issue with the set up page on Mac computers. You will want to get on a Windows computer to do the updates for the Slingbox. Here is a link to the older application below.
Hope this helps!
I have a Solo that has worked fine for years. Yesterday, I noticed it stated no video. I checked all connections and they were fine and had not been changed. I did a reset and now I cannot move though the setup. I get stuck on downloading updates, it stops at 25% and won't go further. I am using Safari with Yosemite 10.10.3. Thanks for any help with this.