Thanks for using our Answers Forum. I understand that you have removed all of your Slingboxes from your account, but when you log into your Slingplayer, you still have one device listed.
I do have a couple of questions for you, which device are you trying to connect with? Also, if you go to accounts.slingbox.com, is the Slingbox still listed there in that directory?
Hope to hear from you soon.
Sling Moderation Team