Thanks for posting to the forums!
When you reset your Slingbox, did you factory reset the unit or did you just disconnect it from it's power source?
If you have not tried to factory reset your Slingbox, I would recommend completing that step as well. This article will guide you through the factory reset process for your specific Slingbox:
Once your Slingbox is completely reset, you will need to go to Watch on slingbox.com to setup your Slingbox again.
Once your Slingbox has been completely setup, I recommend removing the SlingPlayer application from your phone and then reinstalling it again for good measure. You should then be able to connect to your Slingbox without being prompted for an admin password.
Hope this helps!
Sling Media Moderation Team