SB500 - Has been connected to internet until yesterday

So I just picked up an SB500 that was connected to the internet (unused for the last couple of years) until yesterday. Any way to salvage this thing? It seems like I can factory reset it, but then it will never finish the setup. I might be able to access old logs on a Mac that has logged into the sling box app previously. If I can get the admin password from there, I'm set? Otherwise the best I can do is reset and deal with the silly setup issue? Thanks!